feat: promote env variable to ProfilingEnabled option (#3692)

* feat: promote env variable to ProfilingEnabled option

* Add simple test to check two ways to set profiling

cmd/config_consolidation_test.go

@@ -485,6 +485,16 @@ func getConfigConsolidationTestCases() []configConsolidationTestCase {
 			},
 			nil,
 		},
+		{
+			opts{
+				env: []string{"K6_PROFILING_ENABLED=true"},
+				cli: []string{"--profiling-enabled"},
+			},
+			exp{
+				consolidationError: false,
+			},
+			nil,
+		},
 		// TODO: test for differences between flagsets
 		// TODO: more tests in general, especially ones not related to execution parameters...
 	}

cmd/state/state.go

@@ -177,5 +177,8 @@ func getFlags(defaultFlags GlobalFlags, env map[string]string) GlobalFlags {
 	if _, ok := env["NO_COLOR"]; ok {
 		result.NoColor = true
 	}
+	if _, ok := env["K6_PROFILING_ENABLED"]; ok {
+		result.ProfilingEnabled = true
+	}
 	return result
 }