chore(release-please): update pull request title pattern to avoid trailing slash in scope

Author: nicolas-goudry

release-please-config.json

@@ -16,14 +16,13 @@
     { "type": "ci", "section": "Continuous Integration", "hidden": true }
   ],
   "include-v-in-tag": false,
-  "pull-request-title-pattern": "chore(release/${component}): ${version}",
+  "pull-request-title-pattern": "chore(release):${component} ${version}",
   "pull-request-header": "🚀 Release Proposal",
   "pull-request-footer": "This PR was automatically generated by [Release Please](https://github.com/googleapis/release-please).",
   "separate-pull-requests": true,
   "always-update": true,
   "tag-separator": "/",
   "initial-version": "1.0.0",
-  "component-no-space": true,
   "packages": {
     ".": {
       "exclude-paths": ["docs", "tests", "themes"]