chore(ci): Run golangci-lint in GitHub Actions (#88916)

* chore(ci): Run golangci-lint in GitHub Actions

Signed-off-by: Dave Henderson <dave.henderson@grafana.com>

* chore(ci): Remove lint-backend step from Drone

Signed-off-by: Dave Henderson <dave.henderson@grafana.com>

---------

Signed-off-by: Dave Henderson <dave.henderson@grafana.com>

scripts/drone/pipelines/lint_backend.star

@@ -7,7 +7,6 @@ load(
     "compile_build_cmd",
     "enterprise_setup_step",
     "identify_runner_step",
-    "lint_backend_step",
     "lint_drone_step",
     "validate_modfile_step",
     "validate_openapi_spec_step",
@@ -45,7 +44,6 @@ def lint_backend_pipeline(trigger, ver_mode):
     init_steps.append(wire_step)
 
     test_steps = [
-        lint_backend_step(),
         validate_modfile_step(),
         validate_openapi_spec_step(),
     ]

scripts/drone/steps/lib.star

@@ -199,24 +199,6 @@ def enterprise_downstream_step(ver_mode):
 
     return step
 
-def lint_backend_step():
-    return {
-        "name": "lint-backend",
-        "image": images["go"],
-        "environment": {
-            # We need CGO because of go-sqlite3
-            "CGO_ENABLED": "1",
-        },
-        "depends_on": [
-            "wire-install",
-        ],
-        "commands": [
-            "apk add --update make build-base",
-            # Don't use Make since it will re-download the linters
-            "make lint-go",
-        ],
-    }
-
 def validate_modfile_step():
     return {
         "name": "validate-modfile",