Update actions/checkout action to v5

Update DeterminateSystems/nix-installer-action action to v20

.github/workflows/codeql.yml

@@ -40,7 +40,7 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4
+      uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5
 
     # Initializes the CodeQL tools for scanning.
     - name: Initialize CodeQL

.github/workflows/flakehub-publish-rolling.yml

@@ -10,7 +10,7 @@ jobs:
       id-token: "write"
       contents: "read"
     steps:
-      - uses: "actions/checkout@v4"
+      - uses: "actions/checkout@v5"
       - uses: "DeterminateSystems/nix-installer-action@main"
       - uses: "DeterminateSystems/flakehub-push@main"
         with:

.github/workflows/test.yml

@@ -6,12 +6,12 @@ jobs:
   test-nix:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4
+    - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5
       with:
           # Nix Flakes doesn't work on shallow clones
           fetch-depth: 0
     - name: Install Nix
-      uses: DeterminateSystems/nix-installer-action@v19
+      uses: DeterminateSystems/nix-installer-action@v20
     - uses: DeterminateSystems/magic-nix-cache-action@main
     - run: nix-build
   test:
@@ -26,7 +26,7 @@ jobs:
       with:
         go-version: ${{ matrix.go-version }}
     - name: Checkout code
-      uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4
+      uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5
     - name: Format
       run: if [ "$(gofmt -s -l . | wc -l)" -gt 0 ]; then exit 1; fi
       if: matrix.os == 'ubuntu-latest'