chore(deps): update actions/checkout action to v4

.github/workflows/backport.yml

@@ -20,7 +20,7 @@ jobs:
     if: github.repository_owner == 'PrismLauncher' && github.event.pull_request.merged == true && (github.event_name != 'labeled' || startsWith('backport', github.event.label.name))
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           ref: ${{ github.event.pull_request.head.sha }}
       - name: Create backport PRs

.github/workflows/build.yml

@@ -125,7 +125,7 @@ jobs:
       # PREPARE
       ##
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           submodules: 'true'
 
@@ -620,7 +620,7 @@ jobs:
       options: --privileged
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         if: inputs.build_type == 'Debug'
         with:
           submodules: 'true'

.github/workflows/codeql.yml

@@ -8,7 +8,7 @@ jobs:
     
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           submodules: 'true'
 

.github/workflows/trigger_release.yml

@@ -26,7 +26,7 @@ jobs:
       upload_url: ${{ steps.create_release.outputs.upload_url }}
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           submodules: 'true'
           path: 'PrismLauncher-source'

.github/workflows/update-flake.yml

@@ -16,7 +16,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: cachix/install-nix-action@6a9a9e84a173d90b3ffb42c5ddaf9ea033fad011 # v23
 
       - uses: DeterminateSystems/update-flake-lock@v20