Update GitLab to 16.6.0, chart to 7.6.0

This MR contains the following updates:

• GitLab images to 16.6.0
• chart to 7.6.0
• gluon to 0.4.4
• bumped up memory allocation for cypress test, was receiving OOMKilled in pipeline

Package	Update	Change
ironbank/gitlab/gitlab/gitlab-webservice	minor	16.5.1 -> 16.6.0
registry1.dso.mil/ironbank/gitlab/gitlab/certificates	minor	16.5.1 -> 16.6.0
registry1.dso.mil/ironbank/gitlab/gitlab/gitaly	minor	16.5.1 -> 16.6.0
registry1.dso.mil/ironbank/gitlab/gitlab/gitlab-container-registry	minor	16.5.1 -> 16.6.0
registry1.dso.mil/ironbank/gitlab/gitlab/gitlab-exporter	minor	16.5.1 -> 16.6.0
registry1.dso.mil/ironbank/gitlab/gitlab/gitlab-mailroom	minor	16.5.1 -> 16.6.0
registry1.dso.mil/ironbank/gitlab/gitlab/gitlab-pages	minor	16.5.1 -> 16.6.0
registry1.dso.mil/ironbank/gitlab/gitlab/gitlab-shell	minor	16.5.1 -> 16.6.0
registry1.dso.mil/ironbank/gitlab/gitlab/gitlab-sidekiq	minor	16.5.1 -> 16.6.0
registry1.dso.mil/ironbank/gitlab/gitlab/gitlab-toolbox	minor	16.5.1 -> 16.6.0
registry1.dso.mil/ironbank/gitlab/gitlab/gitlab-webservice	minor	16.5.1 -> 16.6.0
registry1.dso.mil/ironbank/gitlab/gitlab/gitlab-workhorse	minor	16.5.1 -> 16.6.0
registry1.dso.mil/ironbank/gitlab/gitlab/kubectl	minor	16.5.1 -> 16.6.0
registry1.dso.mil/ironbank/redhat/ubi/ubi8	minor	8.8 -> 8.9
gluon	minor	0.4.1 -> 0.4.4

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