[Github] Update actions/checkout action to v5 (#643)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [actions/checkout](https://redirect.github.com/actions/checkout) |
action | major | `v4.2.2` -> `v5.0.0` |
| [actions/checkout](https://redirect.github.com/actions/checkout) |
action | major | `v4.3.0` -> `v5.0.0` |

Author: renovate-bot

.github/workflows/build-operations-metrics-container.yml

@@ -25,7 +25,7 @@ jobs:
       container-filename: ${{ steps.vars.outputs.container-filename }}
     steps:
       - name: Checkout LLVM Zorg
-        uses: actions/checkout@08eba0b27e820071cde6df949e0beb9ba4906955 # v4.3.0
+        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
         with:
           sparse-checkout: premerge/ops-container
       - name: Write Variables

.github/workflows/build-premerge-advisor-container.yml

@@ -25,7 +25,7 @@ jobs:
       container-filename: ${{ steps.vars.outputs.container-filename }}
     steps:
       - name: Checkout LLVM Zorg
-        uses: actions/checkout@08eba0b27e820071cde6df949e0beb9ba4906955 # v4.3.0
+        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
         with:
           sparse-checkout: premerge/advisor
       - name: Write Variables

.github/workflows/build-premerge-buildbot-container.yml

@@ -25,7 +25,7 @@ jobs:
       container-filename: ${{ steps.vars.outputs.container-filename }}
     steps:
       - name: Checkout LLVM Zorg
-        uses: actions/checkout@08eba0b27e820071cde6df949e0beb9ba4906955 # v4.3.0
+        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
         with:
           sparse-checkout: premerge/buildbot
       - name: Write Variables

.github/workflows/ci-python-unit.yml

@@ -15,7 +15,7 @@ jobs:
     if: github.repository_owner == 'llvm'
     runs-on: ubuntu-24.04
     steps:
-    - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+    - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
     - uses: actions/setup-python@e797f83bcb11b83ae66e0230d6156d7c80228e7c # v6.0.0
       with:
         python-version: '3.14'

.github/workflows/litmus-tests.yml

@@ -15,7 +15,7 @@ jobs:
     if: github.repository_owner == 'llvm'
     runs-on: ubuntu-24.04
     steps:
-    - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+    - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
     - name: Install dependencies
       run: |
         sudo apt-get update

.github/workflows/tf-formatting.yml

@@ -15,7 +15,7 @@ jobs:
     if: github.repository_owner == 'llvm'
     runs-on: ubuntu-24.04
     steps:
-    - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+    - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
     - name: Install Dependencies
       run: |
         sudo apt-get update