chore: migrate release-doc-sync pin from @v1.0 to @v1

The v1.0 floating tag was created in Phase 2a (PR #19) before
automated floating-tag maintenance existed. PR #26 (DTD#14) added
automation that maintains v1 (vMAJOR) and v1.8 (vMAJOR.MINOR)
floating tags on every release. v1 now serves the purpose v1.0
was created for.

Migrating to @v1 makes this repo's release-doc-sync integration
consistent with the auto-maintained tag namespace and removes the
last consumer of the legacy v1.0 tag (once all 6 consumers
migrate, v1.0 will be deleted).

Refs TMHSDigital/Developer-Tools-Directory#27.

Signed-off-by: 154358121+TMHSDigital@users.noreply.github.com
Made-with: Cursor

Author: TMHSDigital

.github/workflows/release.yml

@@ -110,7 +110,7 @@ jobs:
 
       - name: Sync release docs
         if: steps.check.outputs.skip == 'false'
-        uses: TMHSDigital/Developer-Tools-Directory/.github/actions/release-doc-sync@v1.0
+        uses: TMHSDigital/Developer-Tools-Directory/.github/actions/release-doc-sync@v1
         with:
           plugin-version: ${{ steps.new.outputs.version }}
           previous-version: ${{ steps.current.outputs.version }}