ci: Use strict mkdocs builds on PR previews (#2685)

Signed-off-by: Mare Polaris <15004290+ph00lt0@users.noreply.github.com>
Signed-off-by: Daniel Gray <dngray@privacyguides.org>

.github/workflows/build-pr.yml

@@ -69,6 +69,7 @@ jobs:
       lang: en
       continue-on-error: false
       privileged: ${{ fromJSON(needs.metadata.outputs.privileged) }}
+      strict: true
 
   build_i18n:
     if: ${{ contains(github.event.pull_request.labels.*.name, 'ci:build i18n') }}
@@ -84,6 +85,7 @@ jobs:
       lang: ${{ matrix.lang }}
       continue-on-error: true
       privileged: ${{ fromJSON(needs.metadata.outputs.privileged) }}
+      strict: true
 
   combine_build:
     needs: [build_english, build_i18n]

.github/workflows/build.yml

@@ -24,6 +24,9 @@ on:
       privileged:
         type: boolean
         default: true
+      strict:
+        type: boolean
+        default: false
 
 permissions:
   contents: read
@@ -61,6 +64,11 @@ jobs:
             echo "EXTRA_FLAGS=""$EXTRA_FLAGS" --offline""
           } >> "$GITHUB_ENV"
 
+      - name: Set Metadata for Strict Mode
+        if: inputs.strict
+        run: |
+          echo "EXTRA_FLAGS=""$EXTRA_FLAGS" --cmd_flags=--strict"" >> "$GITHUB_ENV"
+
       - name: Download Repository
         uses: actions/checkout@v4
         with: