chore(deps): update docker.io/gitea/gitea docker tag to v1.21.4 (#316)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| [docker.io/gitea/gitea](https://github.com/go-gitea/gitea) | patch | `1.21.3` -> `1.21.4` |

---

### Release Notes

<details>
<summary>go-gitea/gitea (docker.io/gitea/gitea)</summary>

### [`v1.21.4`](https://github.com/go-gitea/gitea/releases/tag/v1.21.4)

[Compare Source](go-gitea/gitea@v1.21.3...v1.21.4)

-   SECURITY
    -   Update github.com/cloudflare/circl ([#&#8203;28789](go-gitea/gitea#28789)) ([#&#8203;28790](go-gitea/gitea#28790))
    -   Require token for GET subscription endpoint ([#&#8203;28765](go-gitea/gitea#28765)) ([#&#8203;28768](go-gitea/gitea#28768))
-   BUGFIXES
    -   Use refname:strip-2 instead of refname:short when syncing tags ([#&#8203;28797](go-gitea/gitea#28797)) ([#&#8203;28811](go-gitea/gitea#28811))
    -   Fix links in issue card ([#&#8203;28806](go-gitea/gitea#28806)) ([#&#8203;28807](go-gitea/gitea#28807))
    -   Fix nil pointer panic when exec some gitea cli command ([#&#8203;28791](go-gitea/gitea#28791)) ([#&#8203;28795](go-gitea/gitea#28795))
    -   Require token for GET subscription endpoint ([#&#8203;28765](go-gitea/gitea#28765)) ([#&#8203;28778](go-gitea/gitea#28778))
    -   Fix button size in "attached header right" ([#&#8203;28770](go-gitea/gitea#28770)) ([#&#8203;28774](go-gitea/gitea#28774))
    -   Fix `convert.ToTeams` on empty input ([#&#8203;28426](go-gitea/gitea#28426)) ([#&#8203;28767](go-gitea/gitea#28767))
    -   Hide code related setting options in repository when code unit is disabled ([#&#8203;28631](go-gitea/gitea#28631)) ([#&#8203;28749](go-gitea/gitea#28749))
    -   Fix incorrect URL for "Reference in New Issue" ([#&#8203;28716](go-gitea/gitea#28716)) ([#&#8203;28723](go-gitea/gitea#28723))
    -   Fix panic when parsing empty pgsql host ([#&#8203;28708](go-gitea/gitea#28708)) ([#&#8203;28709](go-gitea/gitea#28709))
    -   Upgrade xorm to new version which supported update join for all supported databases ([#&#8203;28590](go-gitea/gitea#28590)) ([#&#8203;28668](go-gitea/gitea#28668))
    -   Fix alpine package files are not rebuilt ([#&#8203;28638](go-gitea/gitea#28638)) ([#&#8203;28665](go-gitea/gitea#28665))
    -   Avoid cycle-redirecting user/login page ([#&#8203;28636](go-gitea/gitea#28636)) ([#&#8203;28658](go-gitea/gitea#28658))
    -   Fix empty ref for cron workflow runs ([#&#8203;28640](go-gitea/gitea#28640)) ([#&#8203;28647](go-gitea/gitea#28647))
    -   Remove unnecessary syncbranchToDB with tests ([#&#8203;28624](go-gitea/gitea#28624)) ([#&#8203;28629](go-gitea/gitea#28629))
    -   Use known issue IID to generate new PR index number when migrating from GitLab ([#&#8203;28616](go-gitea/gitea#28616)) ([#&#8203;28618](go-gitea/gitea#28618))
    -   Fix flex container width ([#&#8203;28603](go-gitea/gitea#28603)) ([#&#8203;28605](go-gitea/gitea#28605))
    -   Fix the scroll behavior for emoji/mention list ([#&#8203;28597](go-gitea/gitea#28597)) ([#&#8203;28601](go-gitea/gitea#28601))
    -   Fix wrong due date rendering in issue list page ([#&#8203;28588](go-gitea/gitea#28588)) ([#&#8203;28591](go-gitea/gitea#28591))
    -   Fix `status_check_contexts` matching bug ([#&#8203;28582](go-gitea/gitea#28582)) ([#&#8203;28589](go-gitea/gitea#28589))
    -   Fix 500 error of searching commits ([#&#8203;28576](go-gitea/gitea#28576)) ([#&#8203;28579](go-gitea/gitea#28579))
    -   Use information from previous blame parts ([#&#8203;28572](go-gitea/gitea#28572)) ([#&#8203;28577](go-gitea/gitea#28577))
    -   Update mermaid for 1.21 ([#&#8203;28571](go-gitea/gitea#28571))
    -   Fix 405 method not allowed CORS / OIDC ([#&#8203;28583](go-gitea/gitea#28583)) ([#&#8203;28586](go-gitea/gitea#28586)) ([#&#8203;28587](go-gitea/gitea#28587)) ([#&#8203;28611](go-gitea/gitea#28611))
    -   Fix `GetCommitStatuses` ([#&#8203;28787](go-gitea/gitea#28787)) ([#&#8203;28804](go-gitea/gitea#28804))
    -   Forbid removing the last admin user ([#&#8203;28337](go-gitea/gitea#28337)) ([#&#8203;28793](go-gitea/gitea#28793))
    -   Fix schedule tasks bugs ([#&#8203;28691](go-gitea/gitea#28691)) ([#&#8203;28780](go-gitea/gitea#28780))
    -   Fix issue dependencies ([#&#8203;27736](go-gitea/gitea#27736)) ([#&#8203;28776](go-gitea/gitea#28776))
    -   Fix system webhooks API bug ([#&#8203;28531](go-gitea/gitea#28531)) ([#&#8203;28666](go-gitea/gitea#28666))
    -   Fix when private user following user, private user will not be counted in his own view ([#&#8203;28037](go-gitea/gitea#28037)) ([#&#8203;28792](go-gitea/gitea#28792))
    -   Render code block in activity tab ([#&#8203;28816](go-gitea/gitea#28816)) ([#&#8203;28818](go-gitea/gitea#28818))
-   ENHANCEMENTS
    -   Rework markup link rendering ([#&#8203;26745](go-gitea/gitea#26745)) ([#&#8203;28803](go-gitea/gitea#28803))
    -   Modernize merge button ([#&#8203;28140](go-gitea/gitea#28140)) ([#&#8203;28786](go-gitea/gitea#28786))
    -   Speed up loading the dashboard on mysql/mariadb ([#&#8203;28546](go-gitea/gitea#28546)) ([#&#8203;28784](go-gitea/gitea#28784))
    -   Assign pull request to project during creation ([#&#8203;28227](go-gitea/gitea#28227)) ([#&#8203;28775](go-gitea/gitea#28775))
    -   Show description as tooltip instead of title for labels ([#&#8203;28754](go-gitea/gitea#28754)) ([#&#8203;28766](go-gitea/gitea#28766))
    -   Make template `DateTime` show proper tooltip ([#&#8203;28677](go-gitea/gitea#28677)) ([#&#8203;28683](go-gitea/gitea#28683))
    -   Switch destination directory for apt signing keys ([#&#8203;28639](go-gitea/gitea#28639)) ([#&#8203;28642](go-gitea/gitea#28642))
    -   Include heap pprof in diagnosis report to help debugging memory leaks ([#&#8203;28596](go-gitea/gitea#28596)) ([#&#8203;28599](go-gitea/gitea#28599))
-   DOCS
    -   Suggest to use Type=simple for systemd service ([#&#8203;28717](go-gitea/gitea#28717)) ([#&#8203;28722](go-gitea/gitea#28722))
    -   Extend description for ARTIFACT_RETENTION_DAYS ([#&#8203;28626](go-gitea/gitea#28626)) ([#&#8203;28630](go-gitea/gitea#28630))
-   MISC
    -   Add -F to commit search to treat keywords as strings ([#&#8203;28744](go-gitea/gitea#28744)) ([#&#8203;28748](go-gitea/gitea#28748))
    -   Add download attribute to release attachments ([#&#8203;28739](go-gitea/gitea#28739)) ([#&#8203;28740](go-gitea/gitea#28740))
    -   Concatenate error in `checkIfPRContentChanged` ([#&#8203;28731](go-gitea/gitea#28731)) ([#&#8203;28737](go-gitea/gitea#28737))
    -   Improve 1.21 document for Database Preparation ([#&#8203;28643](go-gitea/gitea#28643)) ([#&#8203;28644](go-gitea/gitea#28644))

Instances on **[Gitea Cloud](https://cloud.gitea.com)** will be automatically upgraded to this version during the specified maintenance window.

</details>

---

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This PR has been generated by [Renovate Bot](https://github.com/renovatebot/renovate).
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Reviewed-on: https://git.home/nrdufour/home-ops/pulls/316
Co-authored-by: Renovate <renovate@ptinem.io>
Co-committed-by: Renovate <renovate@ptinem.io>

ansible/roles/storage.apps/templates/gitea/deployment.yaml.j2

@@ -17,7 +17,7 @@ spec:
     spec:
       containers:
         - name: gitea
-          image: docker.io/gitea/gitea:1.21.3
+          image: docker.io/gitea/gitea:1.21.4
           env:
             - name: "GITEA__database__DB_TYPE"
               value: "sqlite3"