Core: Allow replace/remove of mocked responses #11119

Job	Run time
Caching (3.8)	14s
Caching (3.9)	11s
Caching (3.10)	11s
Caching (3.11)	8s
Caching (3.12)	11s
Caching (3.13)	22s
Linting (3.8)	3m 56s
Linting (3.9)	3m 44s
Linting (3.10)	3m 9s
Linting (3.11)	2m 52s
Linting (3.12)	3m 0s
Linting (3.13)	3m 4s
jstest / test	1m 12s
dotnettest / test	1m 35s
javatest / test	1m 10s
rubytest / test (3.3)	1m 0s
terraformexamplestest / Find Jobs	5s
test / test (3.8)	17m 25s
testserver / test (3.8)	17m 16s
test / test (3.9)	18m 26s
testserver / test (3.9)	16m 37s
test / test (3.10)	16m 51s
testserver / test (3.10)	14m 40s
testproxy / test (ubuntu-latest, 3.10)	4m 9s
test / test (3.11)	15m 32s
testserver / test (3.11)	14m 56s
testproxy / test (ubuntu-latest, 3.11)	4m 7s
test / test (3.12)	18m 16s
testserver / test (3.12)	14m 30s
testproxy / test (ubuntu-latest, 3.12)	4m 20s
test / test (3.13)	16m 35s
testproxy / test (windows-latest, 3.10)	5m 45s
testproxy / test (windows-latest, 3.11)	5m 22s
testproxy / test (windows-latest, 3.12)	6m 18s
terraformexamplestest / test (acm)	4m 43s
terraformexamplestest / test (autoscaling)	2m 53s
terraformexamplestest / test (awslambda)	3m 57s
terraformexamplestest / test (cloudfront)	4m 1s
terraformexamplestest / test (codebuild)	2m 50s
terraformexamplestest / test (ds)	4m 9s
terraformexamplestest / test (ec2)	3m 20s
terraformexamplestest / test (elb)	3m 42s
terraformexamplestest / test (iam)	2m 43s
terraformexamplestest / test (rds)	3m 57s
terraformexamplestest / test (route53)	3m 57s
terraformexamplestest / test (sqs)	3m 40s
terraformexamplestest / test (wafv2)	3m 20s
	4h 44m 21s

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