feat(konnect): add manifests for konnect config variant

[czeslavo]

What this PR does / why we need it:

It introduces a new variant of deployment: dbless-konnect. It also ships with a specific to it debug configuration to work with Skaffold.

The way Konnect integration will be configured is:

• CONTROLLER_KONNECT_SYNC_ENABLED feature flag
• konnect-config ConfigMap (allows setting Konnect specific env variables: CONTROLLER_KONNECT_RUNTIME_GROUP (required) and CONTROLLER_KONNECT_ADDRESS (optional)
• konnect-client-tls Secret (to pass TLS certs needed to authenticate with Koko)

Which issue this PR fixes:

Part of #3437.

Special notes for your reviewer:

It's adding manifests even though there's no code merged to handle the configuration added yet. It's going to be added soon (#3418).

PR Readiness Checklist:

Complete these before marking the PR as ready to review:

• the CHANGELOG.md release notes have been updated to reflect any significant (and particularly user-facing) changes introduced by this PR

[codecov]

Codecov Report

Base: 73.7% // Head: 73.7% // Increases project coverage by +0.0% 🎉

Coverage data is based on head (aa91bae) compared to base (a91d35f).
Patch has no changes to coverable lines.

Additional details and impacted files

@@          Coverage Diff          @@
##            main   #3448   +/-   ##
=====================================
  Coverage   73.7%   73.7%           
=====================================
  Files        115     115           
  Lines      13971   13971           
=====================================
+ Hits       10302   10308    +6     
+ Misses      3006    3002    -4     
+ Partials     663     661    -2     

Impacted Files	Coverage Δ
...nternal/controllers/gateway/udproute_controller.go	69.5% <0.0%> (-2.2%)	⬇️
...ternal/controllers/gateway/httproute_controller.go	58.5% <0.0%> (-0.2%)	⬇️
...nternal/controllers/gateway/tcproute_controller.go	72.0% <0.0%> (+2.0%)	⬆️
...nternal/controllers/gateway/tlsroute_controller.go	73.4% <0.0%> (+2.0%)	⬆️

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