[release/v1.19.x] Fix website PR (#6923)

Clean cherry-pick of #6869 to the `release/v1.19.x` branch.

Co-authored-by: Trask Stalnaker <trask.stalnaker@gmail.com>

.github/workflows/reusable-create-website-pull-request.yml

@@ -40,7 +40,7 @@ jobs:
           VERSION: ${{ inputs.version }}
         run: |
           # TODO (trask) this will need to be updated when instrumentation-annotations are stable
-          sed -Ei "s/^javaAnnotationsVersion: [0-9.]+$/javaAnnotationsVersion: ${VERSION}-alpha/" content/en/docs/instrumentation/java/automatic/annotations.md
+          sed -Ei "s/^javaAnnotationsVersion: [0-9.]+-alpha$/javaAnnotationsVersion: ${VERSION}-alpha/" content/en/docs/instrumentation/java/automatic/annotations.md
 
       - name: Use CLA approved github bot
         run: |