build(deps): update arm32v7/alpine docker tag to v3.13.1

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
arm32v7/alpine	final	patch	3.13.0 -> 3.13.1

---

Renovate configuration

📅 Schedule: At any time (no schedule defined).

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻️ Rebasing: Never, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

---

• If you want to rebase/retry this PR, check this box

---

This PR has been generated by WhiteSource Renovate. View repository job log here.

[codecov]

Codecov Report

Merging #1650 (d8ef604) into master (d4d781a) will increase coverage by 0.50%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #1650      +/-   ##
==========================================
+ Coverage   69.75%   70.26%   +0.50%     
==========================================
  Files         149      149              
  Lines        4130     4130              
  Branches      172      172              
==========================================
+ Hits         2881     2902      +21     
+ Misses       1018      997      -21     
  Partials      231      231              

Flag	Coverage Δ
backend	71.72% <ø> (+0.55%)	⬆️
frontend	64.88% <ø> (+0.34%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
internal/utils/strings.go	86.66% <0.00%> (ø)
internal/server/server.go	84.46% <0.00%> (+1.94%)	⬆️
internal/authentication/ldap_user_provider.go	84.76% <0.00%> (+2.64%)	⬆️
internal/handlers/handler_reset_password_step2.go	57.69% <0.00%> (+7.69%)	⬆️
internal/authentication/ldap_connection_factory.go	81.81% <0.00%> (+9.09%)	⬆️
internal/configuration/validator/server.go	100.00% <0.00%> (+12.50%)	⬆️
web/src/App.tsx	100.00% <0.00%> (+15.38%)	⬆️
web/src/utils/AssetPath.ts	100.00% <0.00%> (+33.33%)	⬆️
internal/middlewares/strip_path.go	100.00% <0.00%> (+100.00%)	⬆️