cert-manager-app release v3.4.0

Added

• Add Values.global.podSecurityStandards.enforced flag in preparation of PSP to PSS migration (#359)

Changed

• Enable ServiceMonitor by default. (#361)
• Remove control plane node toleration of CA injector deployment. This caused problems on single control plane node clusters. (#360)
• Update container image versions to use v1.12.4 (#363)