cli/compose/loader: Using a reference for the variable on range scope…

… `overrideService` (scopelint)

```
cli/compose/loader/merge.go:64:41: Using a reference for the variable on range scope `overrideService` (scopelint)
			if err := mergo.Merge(&baseService, &overrideService, mergo.WithAppendSlice, mergo.WithOverride, mergo.WithTransformers(specials)); err != nil {
			                                     ^
cli/compose/loader/loader_test.go:1587:28: Using the variable on range scope `testcase` in function literal (scopelint)
			config, err := loadYAML(testcase.yaml)
			                        ^
cli/compose/loader/loader_test.go:1590:58: Using the variable on range scope `testcase` in function literal (scopelint)
			assert.Check(t, is.DeepEqual(config.Services[0].Init, testcase.init))
			                                                      ^
```

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>

cli/compose/loader/loader_test.go

@@ -1583,6 +1583,7 @@ services:
 		},
 	}
 	for _, testcase := range testcases {
+		testcase := testcase
 		t.Run(testcase.doc, func(t *testing.T) {
 			config, err := loadYAML(testcase.yaml)
 			assert.NilError(t, err)

cli/compose/loader/merge.go

@@ -60,6 +60,7 @@ func mergeServices(base, override []types.ServiceConfig) ([]types.ServiceConfig,
 		},
 	}
 	for name, overrideService := range overrideServices {
+		overrideService := overrideService
 		if baseService, ok := baseServices[name]; ok {
 			if err := mergo.Merge(&baseService, &overrideService, mergo.WithAppendSlice, mergo.WithOverride, mergo.WithTransformers(specials)); err != nil {
 				return base, errors.Wrapf(err, "cannot merge service %s", name)