Bump versions of actions to latest releases.

Note that this isn't the same as pinning to commits as in specifying
their hashes. Note also that this isn't as ugly either. It's a minor
improvement over "floating" (i.e. major version only) tags/branches.

Change-Id: Id88fe81281885aff41f2625b3b71f945266c8677
Reviewed-on: https://code-review.googlesource.com/c/re2/+/62871
Reviewed-by: Alex Chernyakhovsky <achernya@google.com>
Reviewed-by: Paul Wankadia <junyer@google.com>
6 files changed