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Update ubi8 image version from 8.3 to 8.4

See merge request !46

Update Chart.yaml to increment version from 4.10.3-bb.8 to 4.10.3-bb.9 to reflect Iron Bank UBI image version update from 8.3 to 8.4

Resolve "Document utilizing custom CA certificates within GItlab, especially for OIDC communications"

Closes #12

See merge request !45

Resolve "network policy allow sso egress"

Closes #21

See merge request !44

chore: turn off ingress in subcharts by default

Closes #20

See merge request !43