Added deprecation warnings.

.github/workflows/BuildTheDocs.yml

@@ -37,8 +37,8 @@ jobs:
     runs-on: ubuntu-24.04
 
     steps:
-      - name: '❗ Deprecation message'
-        run: printf "::warning title=%s::%s\n" "Deprecated" "'BuildTheDocs.yml' is not maintained anymore. Please switch to 'SphinxDocumentation.yml', 'LaTeXDocumentation.yml' and 'ExtractConfiguration.yml'."
+      - name: ⚠️ Deprecation Warning
+        run: printf "::warning title=%s::%s\n" "Deprecated" "'BuildTheDocs.yml' template is deprecated. Please switch to 'SphinxDocumentation.yml'. See https://pytooling.github.io/Actions/JobTemplate/Documentation/SphinxDocumentation.html"
 
       - name: ⏬ Checkout repository
         uses: actions/checkout@v5

.github/workflows/CoverageCollection.yml

@@ -71,8 +71,8 @@ jobs:
     runs-on: "ubuntu-${{ inputs.ubuntu_image_version }}"
 
     steps:
-      - name: '❗ Deprecation message'
-        run: printf "::warning title=%s::%s\n" "Deprecated" "'CoverageCollection.yml' is not maintained anymore. Please switch to 'UnitTesting.yml', 'PublishCoverageResults.yml' and 'PublishTestResults.yml'."
+      - name: ⚠️ Deprecation Warning
+        run: printf "::warning title=%s::%s\n" "Deprecated" "'CoverageCollection.yml' template is deprecated. Please switch to 'PublishReleaseNotes.yml'. See https://pytooling.github.io/Actions/JobTemplate/Testing/UnitTesting.html"
 
       - name: ⏬ Checkout repository
         uses: actions/checkout@v5

.github/workflows/NightlyRelease.yml

@@ -100,6 +100,9 @@ jobs:
 #      attestations: write
 
     steps:
+      - name: ⚠️ Deprecation Warning
+        run: printf "::warning title=%s::%s\n" "NightlyRelease" "'NightlyRelease.yml' template is deprecated. Please switch to 'PublishReleaseNotes.yml'. See https://pytooling.github.io/Actions/JobTemplate/Release/PublishReleaseNotes.html"
+
       - name: ⏬ Checkout repository
         uses: actions/checkout@v5
         with: