chore: improve backport PR creation and PR template text (#8705)

Author: petebacondarwin

.github/pull_request_template.md

@@ -13,7 +13,7 @@ The following selections do not need to be completed if this PR only contains ch
   - [ ] TODO (before merge)
   - [ ] Tests included
   - [ ] Tests not necessary because:
-- Wrangler E2E Tests CI Job required? (Use "e2e" label or ask maintainer to run separately)
+- Wrangler / Vite E2E Tests CI Job required? (Use "e2e" label or ask maintainer to run separately)
   - [ ] I don't know
   - [ ] Required
   - [ ] Not required because:

.github/workflows/open-v3-maintenance-prs.yml

@@ -29,6 +29,7 @@ jobs:
         env:
           FILES: ${{ steps.files.outputs.all }}
           PR_NUMBER: ${{ github.event.number }}
+          PR_TITLE: ${{ toJson(github.event.pull_request.title) }}
           GH_TOKEN: ${{ secrets.GH_ACCESS_TOKEN }}
           LABELS: ${{ toJson(github.event.pull_request.labels.*.name) }}
       # - name: "Comment on PR with error details"

tools/deployments/open-v3-pr.ts

@@ -21,7 +21,18 @@ if (require.main === module) {
 		try {
 			// Open PR
 			execSync(
-				`gh pr create --base v3-maintenance --head v3-maintenance-${process.env.PR_NUMBER} --label "skip-pr-description-validation" --label "skip-v3-pr" --title "Backport #${process.env.PR_NUMBER} to Wrangler v3" --body "This is an automatically opened PR to backport patch changes from #${process.env.PR_NUMBER} to Wrangler v3"`
+				[
+					`gh`,
+					`pr`,
+					`create`,
+					`--base`,
+					`v3-maintenance`,
+					`--head v3-maintenance-${process.env.PR_NUMBER}`,
+					`--label "skip-pr-description-validation"`,
+					`--label "skip-v3-pr"`,
+					`--title "V3 Backport [#${process.env.PR_NUMBER}]: ${process.env.PR_TITLE?.slice(1, -1)}`,
+					`--body "This is an automatically opened PR to backport patch changes from #${process.env.PR_NUMBER} to Wrangler v3"`,
+				].join(" ")
 			);
 		} catch {
 			// Ignore "PR already created failures"