chore: bump golang from `613a108` to `4a3c2bc` in /build/gomplate #1940

Job	Run time
generate	1m 58s
Verify assertions in suite.yaml files for cel policies	8s
Verify assertions in suite.yaml files for cel policies	18s
Require a suite.yaml file alongside every template.yaml	9s
Verify assertions in suite.yaml files for rego policies	18s
Require a sync.yaml file and metadata.gatekeeper.sh/requires-sync-data annotation for every templ...	1m 29s
Verify assertions in suite.yaml files for rego policies	21s
Test scripts	1m 34s
Unit test on ubuntu-latest opa v0.44.0	15s
Unit test on ubuntu-latest opa v0.57.1	14s
Integration test on Gatekeeper 3.15.1 for cel policies	9s
Unit test on macos-latest opa v0.44.0	23s
Integration test on Gatekeeper 3.15.1 for rego policies	6m 36s
Unit test on macos-latest opa v0.57.1	21s
Integration test on Gatekeeper 3.16.3 for cel policies	6m 48s
Integration test on Gatekeeper 3.16.3 for rego policies	6m 32s
	27m 33s

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