Bump vendor/dependabot-script from `73465c6` to `3c3557a`

Bumps vendor/dependabot-script from 73465c6 to 3c3557a.

Commits

• 3c3557a Merge pull request #336 from dependabot/dependabot/bundler/dependabot-omnibus...
• 70021f8 Bump dependabot-omnibus from 0.111.53 to 0.111.56
• c8a8fb0 Merge pull request #335 from dependabot/dependabot/bundler/dependabot-omnibus...
• 3df3241 Bump dependabot-omnibus from 0.111.47 to 0.111.53
• ad16496 Merge pull request #334 from dependabot/dependabot/bundler/dependabot-omnibus...
• 2b83af2 Bump dependabot-omnibus from 0.111.40 to 0.111.47
• efe7dbf Merge pull request #332 from LeoColomb/patch-1
• 301a852 Provide backwards compatibility for PULL_REQUESTS_ASSIGNEE
• 1ca855d Fix documentation
• cee4594 Keep environment variables as generic as possible
• See full diff in compare view