ci: Last attempt to fix dependabot failure to resolve "Slicer/jinja2-…

…action" version

This is expected to address the following error introduced in 5abe070 ("fix: Use Slicer fork of jinja2-action to fix Poetry 2.0 breaking change", 2025-01-08)

> Dependabot could not find a dependency version.
> Dependabot could not resolve semantic versions for dependencies : Slicer/jinja2-action

Instead of either listing "Slicer/jinja2-action" as dependency to ignore in `dependatbot.yml`
or adding comment including multiple strings, this commit switches to a version
tagged and released explicitly within the "Slicer/jinja2-action" project.

.github/workflows/build-website.yml

@@ -94,31 +94,31 @@ jobs:
 
     - name: 'Evaluate download template [release_and_nightly]'
       if: env.deploy_download_preview == 'true'
-      uses: Slicer/jinja2-action@d94dd73f31971ae95cb4cfee57236618c65ccb7f # slicer-2023-11-09-2ea7da6
+      uses: Slicer/jinja2-action@d94dd73f31971ae95cb4cfee57236618c65ccb7f # v1.2.3
       with:
         template: _site/download.html
         data_file: _data/template_test_data/download_release_and_nightly.json
         output_file: _site/download_release_and_nightly.html
 
     - name: 'Evaluate download template [only_release]'
       if: env.deploy_download_preview == 'true'
-      uses: Slicer/jinja2-action@d94dd73f31971ae95cb4cfee57236618c65ccb7f # slicer-2023-11-09-2ea7da6
+      uses: Slicer/jinja2-action@d94dd73f31971ae95cb4cfee57236618c65ccb7f # v1.2.3
       with:
         template: _site/download.html
         data_file: _data/template_test_data/download_only_release.json
         output_file: _site/download_only_release.html
 
     - name: 'Evaluate download template [only_nightly]'
       if: env.deploy_download_preview == 'true'
-      uses: Slicer/jinja2-action@d94dd73f31971ae95cb4cfee57236618c65ccb7f # slicer-2023-11-09-2ea7da6
+      uses: Slicer/jinja2-action@d94dd73f31971ae95cb4cfee57236618c65ccb7f # v1.2.3
       with:
         template: _site/download.html
         data_file: _data/template_test_data/download_only_nightly.json
         output_file: _site/download_only_nightly.html
 
     - name: 'Evaluate download template [incomplete_releases]'
       if: env.deploy_download_preview == 'true'
-      uses: Slicer/jinja2-action@d94dd73f31971ae95cb4cfee57236618c65ccb7f # slicer-2023-11-09-2ea7da6
+      uses: Slicer/jinja2-action@d94dd73f31971ae95cb4cfee57236618c65ccb7f # v1.2.3
       with:
         template: _site/download.html
         data_file: _data/template_test_data/download_incomplete_releases.json