fix(dev-infra): make commit-message-filter script executable for merge (#37209)
fix(dev-infra): make commit-message-filter script executable for merge (#37209)

Marks the commit-mesage-filter.js file as executable, allowing it
to be run by 'git filter-branch' during the merge script process.

PR Close #37209

angular/dev-infra,angular/dev-infra,angular/dev-infra,angular/dev-infra