dependency: bump dependabot-omnibus from 0.138.3 to 0.138.5

Bumps dependabot-omnibus from 0.138.3 to 0.138.5.

Changelog

Sourced from dependabot-omnibus's changelog.

v0.138.5, 26 March 2021

• Maven/Gradle: Treat dev and pr as pre-releases for gradle/maven
• Bundler v2 [pre-release]: Add and test jfrog source helper
• Cargo: Update Rust to 1.51.0 (thanks @​CryZe)
• Bump npm from 6.14.11 to 6.14.12 in /npm_and_yarn/helpers
• Internal: bump-version: re-tag the release notes ref
• Azure: adding azure pr updater reference in pr updater common class

v0.138.4, 25 March 2021

• Docker: fix invalid Accept header when checking for updates
• Bundler: fix invalid requirement replacement when using != filters
• Bundler [Prerelease]: Add UpdateChecker for Bundler 2
• Bundler [Prerelease]: Add version resolver for Bundler 2
• Bundler [Prerelease]: Add file updater for Bundler 2
• Dependabot::PullRequestCreator::MessageBuilder::new - github_redirection_service is a required argument
• CI: Fix flaky npm spec
• CI: Extend npm retries and max attempts
• CI: Skip coverage reports
• Update npm from 7.6.1 to 7.7.0

Commits

• 85f94f5 Merge pull request #3367 from dependabot/v0.138.5-release-notes
• 446af3d Update CHANGELOG.md
• 8326314 Update CHANGELOG.md
• 60c3171 v0.138.5
• 43dc9e0 Merge pull request #3364 from dependabot/feelepxyz/gradle-maven-dev
• 4eda81b Update maven/spec/dependabot/maven/version_spec.rb
• beea803 Update gradle/spec/dependabot/gradle/version_spec.rb
• 59fab87 Merge pull request #3310 from GiriB/pr_updater_bug_azure
• 47bd1e9 Merge pull request #3362 from CryZe/update-cargo
• f480b63 Treat dev and pr as pre-releases for gradle/maven
• Additional commits viewable in compare view

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