chore(ci): update package-updater workflow to skip on errors (#15127)

## Description

<!-- Provide an overview of the change and motivation for the change -->

`Generate Package Versions` workflow run is failing on: `AttributeError:
'InstallRequirement' object has no attribute 'use_pep517'`
Pin `pip<25.3` as pip-tools is not currently compatible with pip 25.3:
jazzband/pip-tools#2252 (comment)

## Testing

<!-- Describe your testing strategy or note what tests are included -->
Note: will see output of workflow run once merged into main, as we
cannot trigger workflows on non-main branches

## Risks

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-->

## Additional Notes

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Author: quinna-h

.github/workflows/generate-package-versions.yml

@@ -81,14 +81,14 @@ jobs:
 
       - name: Install Python dependencies
         run: |
-          python -m pip install --upgrade pip
+          python -m pip install --upgrade "pip<25.3"
           pip install packaging
           pip install requests
           pip install riot==0.20.1
           pip install PyYAML
           pip install ddtrace
           # Install latest pip-tools from main branch for Python 3.14 compatibility
-          pip install --upgrade git+https://github.com/jazzband/pip-tools.git@934b46a8795554f994b984ac743957f8458a29d6
+          pip install --upgrade git+https://github.com/jazzband/pip-tools.git@1c2692b7f45a94d93e3f4bb252da3fd711ad08a9 # v7.5.1
 
       - name: Run regenerate-riot-latest
         run: scripts/regenerate-riot-latest.sh