chore(deps): update all github action dependencies to v6

Signed-off-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/build-envoy-image-ci.yaml

@@ -44,7 +44,7 @@ jobs:
           password: ${{ secrets.QUAY_ENVOY_PASSWORD_DEV }}
 
       - name: Checkout PR
-        uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5.0.1
+        uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6.0.0
         with:
           ref: ${{ github.event.pull_request.head.sha }}
           persist-credentials: false

.github/workflows/build-envoy-images-release.yaml

@@ -36,7 +36,7 @@ jobs:
           password: ${{ secrets.QUAY_ENVOY_PASSWORD }}
 
       - name: Checkout source
-        uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5.0.1
+        uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6.0.0
         with:
           persist-credentials: false
 
@@ -100,7 +100,7 @@ jobs:
           password: ${{ secrets.QUAY_ENVOY_PASSWORD }}
 
       - name: Checkout source
-        uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5.0.1
+        uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6.0.0
       - name: Prep for build
         run: |
           echo "${{ github.sha }}" >SOURCE_VERSION

.github/workflows/ci-check-format.yaml

@@ -18,7 +18,7 @@ jobs:
     runs-on: ubuntu-24.04
     steps:
       - name: Checkout PR Source Code
-        uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5.0.1
+        uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6.0.0
         with:
           ref: ${{ github.event.pull_request.head.sha }}
           persist-credentials: false
@@ -66,7 +66,7 @@ jobs:
     runs-on: ubuntu-24.04
     steps:
       - name: Checkout PR Source Code
-        uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5.0.1
+        uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6.0.0
         with:
           ref: ${{ github.event.pull_request.head.sha }}
           persist-credentials: false

.github/workflows/ci-tests.yaml

@@ -23,7 +23,7 @@ jobs:
         # renovate: datasource=golang-version depName=go
         go-version: 1.25.1
     - name: Checkout code
-      uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5.0.1
+      uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6.0.0
       with:
         persist-credentials: false
     - name: Check module vendoring
@@ -51,7 +51,7 @@ jobs:
           restore-keys: docker-cache-main
 
       - name: Checkout PR Source Code
-        uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5.0.1
+        uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6.0.0
         with:
           ref: ${{ github.event.pull_request.head.sha }}
           persist-credentials: false

.github/workflows/cilium-gateway-api.yaml

@@ -45,7 +45,7 @@ jobs:
           echo "PROXY_TAG=${{ inputs.commit_ref }}" >> $GITHUB_ENV
 
       - name: Checkout Cilium ${{ env.CILIUM_REPO_REF }}
-        uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5.0.1
+        uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6.0.0
         with:
           repository: ${{ env.CILIUM_REPO_OWNER }}/cilium # Be aware that this is the Cilium repository and not the one of the proxy itself!
           ref: ${{ env.CILIUM_REPO_REF }}

.github/workflows/cilium-integration-tests.yaml

@@ -53,7 +53,7 @@ jobs:
           echo "PROXY_GITHUB_REPO=github.com/${{ inputs.repository }}" >> $GITHUB_ENV
 
       - name: Checkout Cilium ${{ env.CILIUM_REPO_REF }}
-        uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5.0.1
+        uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6.0.0
         with:
           repository: ${{ env.CILIUM_REPO_OWNER }}/cilium # Be aware that this is the Cilium repository and not the one of the proxy itself!
           ref: ${{ env.CILIUM_REPO_REF }}

.github/workflows/codeql.yml

@@ -26,7 +26,7 @@ jobs:
             language: 'cpp'
     steps:
       - name: Checkout repository
-        uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5
+        uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6
       - name: Initialize CodeQL
         uses: github/codeql-action/init@e12f0178983d466f2f6028f5cc7a6d786fd97f4b # v4
         with:

.github/workflows/renovate-config-validator.yaml

@@ -18,7 +18,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout configuration
-        uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5.0.1
+        uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6.0.0
 
       # this step uses latest renovate slim release
       - name: Validate configuration