build(deps): bump actions/checkout from 4.2.2 to 6.0.1 (#4846)

Bumps [actions/checkout](https://github.com/actions/checkout) from 4.2.2 to 6.0.1.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](https://github.com/actions/checkout/compare/v4.2.2...8e8c483db84b4bee98b60c0593521ed34d9990e8)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: 6.0.1
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/ci.yml

@@ -8,7 +8,7 @@ jobs:
     name: Test alertmanager frontend
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+      - uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
       - run: make clean
       - run: make all
         working-directory: ./ui/app
@@ -23,7 +23,7 @@ jobs:
       matrix:
         thread: [0, 1, 2]
     steps:
-      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v4.0.0
+      - uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v4.0.0
       - uses: prometheus/promci@c0916f0a41f13444612a8f0f5e700ea34edd7c19 # v0.5.3
       - uses: ./.github/promci/actions/build
         with:
@@ -51,7 +51,7 @@ jobs:
       EMAIL_NO_AUTH_CONFIG: testdata/noauth.yml
       EMAIL_AUTH_CONFIG: testdata/auth.yml
     steps:
-      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+      - uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
       - uses: prometheus/promci@c0916f0a41f13444612a8f0f5e700ea34edd7c19 # v0.5.3
       - uses: ./.github/promci/actions/setup_environment
       - run: make

.github/workflows/mixin.yml

@@ -10,7 +10,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout repository
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+        uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
       - name: install Go
         uses: actions/setup-go@4dc6199c7b1a012772edbd06daecab0f50c9053c # v6.1.0
         with:

.github/workflows/publish.yml

@@ -17,7 +17,7 @@ jobs:
         thread: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11]
     needs: ci
     steps:
-      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+      - uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
       - uses: prometheus/promci@c0916f0a41f13444612a8f0f5e700ea34edd7c19 # v0.5.3
       - uses: ./.github/promci/actions/build
         with:
@@ -28,7 +28,7 @@ jobs:
     runs-on: ubuntu-latest
     needs: build
     steps:
-      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+      - uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
       - uses: prometheus/promci@c0916f0a41f13444612a8f0f5e700ea34edd7c19 # v0.5.3
       - uses: ./.github/promci/actions/publish_main
         with:

.github/workflows/release.yml

@@ -17,7 +17,7 @@ jobs:
         thread: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11]
     needs: ci
     steps:
-      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+      - uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
       - uses: prometheus/promci@c0916f0a41f13444612a8f0f5e700ea34edd7c19 # v0.5.3
       - uses: ./.github/promci/actions/build
         with:
@@ -28,7 +28,7 @@ jobs:
     runs-on: ubuntu-latest
     needs: build
     steps:
-      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+      - uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
       - uses: prometheus/promci@c0916f0a41f13444612a8f0f5e700ea34edd7c19 # v0.5.3
       - uses: ./.github/promci/actions/publish_release
         with:

.github/workflows/ui-ci.yml

@@ -19,7 +19,7 @@ jobs:
       run:
         working-directory: ./ui/mantine-ui
     steps:
-      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+      - uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
       - uses: actions/setup-node@395ad3262231945c25e8478fd5baf05154b1d79f # v6.1.0
         with:
           node-version-file: './ui/mantine-ui/.nvmrc'