Updating badges to remove Dedicated

doc/update/background_migrations.md

doc/update/background_migrations_troubleshooting.md

doc/update/index.md

doc/update/package/convert_to_ee.md

doc/update/package/downgrade.md

doc/update/package/index.md

doc/update/package/package_troubleshooting.md

doc/update/patch_versions.md

doc/update/plan_your_upgrade.md

doc/update/upgrading_from_ce_to_ee.md

doc/update/upgrading_from_source.md

doc/update/versions/gitlab_14_changes.md

doc/update/versions/gitlab_15_changes.md

doc/update/versions/gitlab_16_changes.md

doc/update/with_downtime.md

doc/update/zero_downtime.md