Bump github.com/mattermost/mattermost/server/public from 0.1.21 to 0.3.0

[dependabot]

Bumps github.com/mattermost/mattermost/server/public from 0.1.21 to 0.3.0.

Commits

• 9b01e40 Move password hashers from server/v8 to server/public to fix module layering ...
• 50f31ae Mm 66662 bump dependencies (#35849)
• 4d20645 Inline mattermost-govet into the monorepo (#35869)
• eb8310a simplify CODEOWNERS (#35770)
• aaefd41 MM-68120 - Use repo checkout for build files in server-ci-artifacts (#35842)
• d001251 disable burn on read posts on shared channels (#35460)
• f4d1abe MM-68140: Validate post read access before rewrite thread context (#35864)
• 47d2c60 Docs impact fixes (#35877)
• 2550ecd ci: post success to required e2e status contexts when no relevant changes (#3...
• 3e2c3f7 fix: prevent sql.DB connectionCleaner race and harden flaky tests (#35891)
• Additional commits viewable in compare view

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Change Impact: 🟡 Medium

Reasoning: This Dependabot PR updates the core mattermost/server/public dependency from v0.1.21 to v0.3.0 (a significant minor version bump with potential API changes) and modifies the authentication flow to use a newer Mattermost API type. While the direct code change is minimal (one-line attachment type replacement in connectUserToGitHub), it touches a critical user-facing authentication completion path and introduces multiple upstream dependency changes that could trigger unexpected behaviors.

Regression Risk: The shift from SlackAttachment to MessageAttachment in the post-OAuth direct message flow affects how user notifications are rendered after GitHub authentication completes. The v0.3.0 dependency bump may introduce breaking changes or incompatibilities not immediately visible. Multiple indirect dependencies are updated simultaneously (golang.org/x/* versions, google.golang.org packages), increasing the surface area for potential regressions. The OAuth connection flow is user-critical and any rendering or delivery issues would directly impact authentication completion experience.

QA Recommendation: Manual testing of the GitHub OAuth flow is recommended—specifically: (1) verify that the post-OAuth direct message is properly delivered and rendered to users upon successful authentication, (2) test both success and error message paths (the MessageAttachment change applies to the error case), and (3) validate that message formatting and styling display correctly in Mattermost clients. Testing cannot be safely skipped given the authentication path criticality; however, a focused regression test on the OAuth DM delivery flow would be sufficient rather than comprehensive re-testing of all plugin features.

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ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Repository UI

Review profile: CHILL

Plan: Pro

Run ID: 212f7439-7db2-4b4e-97ce-c0ac0d0e8cc1

📥 Commits

Reviewing files that changed from the base of the PR and between 91fc3c1 and 9bc1c75.

⛔ Files ignored due to path filters (1)

• go.sum is excluded by !**/*.sum

📒 Files selected for processing (2)

• go.mod
• server/plugin/api.go

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📝 Walkthrough

Walkthrough

Go version and multiple direct and indirect dependencies are updated in go.mod, including a notable bump to github.com/mattermost/mattermost/server/public from v0.1.21 to v0.3.0. The OAuth callback DM sent in server/plugin/api.go switches from using model.SlackAttachment to model.MessageAttachment.

Changes

Dependency and compatibility updates

Layer / File(s)	Summary
Dependency and Go version updates go.mod	Go version set to 1.25.8; github.com/mattermost/mattermost/server/public bumped to v0.3.0, golang.org/x/oauth2 to v0.36.0, github.com/lib/pq to v1.12.0, and multiple golang.org/x/* modules refreshed. Indirect dependency github.com/goccy/go-yaml v1.19.2 is added; github.com/blang/semver/v4 is removed.
OAuth callback attachment type server/plugin/api.go	Post-OAuth DM in connectUserToGitHub changes from model.SlackAttachment to model.MessageAttachment while keeping message text and color fields.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~12 minutes

Suggested labels

2: Dev Review

Poem

🐰 Hop and bump, deps take flight,
Go 1.25.8 shines so bright,
Slack to Message, a smooth refrain,
OAuth flows without a strain!

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title directly reflects the main change: bumping a specific dependency version. However, the PR also includes other significant changes (Go version update to 1.25.8, multiple other dependency updates, and code changes in api.go) that are not mentioned in the title.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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✨ Finishing Touches

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🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch dependabot/go_modules/github.com/mattermost/mattermost/server/public-0.3.0

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