Update dependency gitlab-ci-utils/gitlab-ci-templates to v6

This MR contains the following updates:

Package	Type	Update	Change
gitlab-ci-utils/gitlab-ci-templates	repository	major	5.0.0 -> 6.0.0

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Release Notes

gitlab-ci-utils/gitlab-ci-templates

v6.0.0

Compare Source

Changed

• BREAKING: Removed Node 12 from Node-Version-Tests collection since end-of-life as of 2022-04-30. (#​176)
• Updated to latest dependencies:
  • node_sbom job to @cyclonedx/bom@3.8.0
  • pagean job to pagean@6.0.9

Fixed

• Updated pnpm test to trap install errors to avoid failing for unmet peer dependencies. If there are actual install errors, the tests will fail. (#​182)

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