Backport meshconfig changes

[jaellio]

Description:

Cherry-picks 55e3b3b and 3f8d154 for v0.9.
Signed-off-by: Jackie Elliott [email protected]

• ref(*): move feature flags to meshconfig
  Signed-off-by: Jackie Elliott [email protected]

• prometheusScraping: Remove prometheus scraping flag
  Signed-off-by: Sneha Chhabria [email protected]

Affected area:

Functional Area
New Functionality	[ ]
Documentation	[ ]
Install	[ ]
CLI Tool	[ ]
Certificate Management	[ ]
Control Plane	[ ]
Ingress	[ ]
Egress	[ ]
Networking	[ ]
Observability	[ ]
SMI Policy	[ ]
Sidecar Injection	[ ]
Security	[ ]
Upgrade	[ ]
Tests	[ ]
CI System	[ ]
Demo	[ ]
Performance	[ ]
Other	[ ]

Please answer the following questions with yes/no.

1. Does this change contain code from or inspired by another project?

   • Did you notify the maintainers and provide attribution?

2. Is this a breaking change?

[codecov-commenter]

Codecov Report

Merging #3631 (097b498) into release-v0.9 (09cdbc2) will decrease coverage by 0.13%.
The diff coverage is 43.18%.

@@               Coverage Diff                @@
##           release-v0.9    #3631      +/-   ##
================================================
- Coverage         66.57%   66.44%   -0.14%     
================================================
  Files               169      168       -1     
  Lines              7904     7912       +8     
================================================
- Hits               5262     5257       -5     
- Misses             2611     2624      +13     
  Partials             31       31              

Flag	Coverage Δ
unittests	66.44% <43.18%> (-0.14%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
cmd/cli/install.go	70.79% <ø> (-0.76%)	⬇️
cmd/osm-controller/osm-controller.go	15.87% <ø> (-1.30%)	⬇️
pkg/catalog/catalog.go	92.85% <0.00%> (-7.15%)	⬇️
pkg/catalog/fake.go	37.39% <0.00%> (-0.33%)	⬇️
pkg/catalog/mock_catalog_generated.go	0.00% <0.00%> (ø)
pkg/configurator/mock_client_generated.go	0.00% <0.00%> (ø)
pkg/debugger/feature_flags.go	16.66% <0.00%> (-3.34%)	⬇️
pkg/envoy/xdsutil.go	89.24% <ø> (ø)
pkg/kubernetes/mock_controller_generated.go	0.00% <0.00%> (ø)
pkg/kubernetes/types.go	100.00% <ø> (ø)
... and 11 more

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[shashankram]

@jaellio The backport should preserve the commit history if multiple commits are involved, as in this case. Do not squash these.