Add super-linter + fix lint issues (#650)

* feat: bump `golangci-lint`, add `super-linter`, replace outdated linter

Bump `golangci-lint` version.
Add `super-linter` to lint other languages.
Go linter is disabled because it's currently broken:
https://github.com/github/super-linter/pull/370
Replacing `scopelint` with `exportloopref`: "[runner] The linter
'scopelint' is deprecated (since v1.39.0) due to: The repository of the
linter has been deprecated by the owner.  Replaced by exportloopref."
Fixed formatting in `.golangci.yml`
Add addtional linters:
  `misspell`: purely style, detects typos in comments
  `whitespace`: detects leading and trailing whitespace
  `goimports`: it's gofmt + checks unused imports

* fix: lint/fix `go` files

* fix: lint with `standardjs`

* fix: lint/fix with `markdownlint`, make template more verbose

* feat: add lint stuff to makefile

* fix: `UseGitIgnore` formatting

* fix: lint/fix `README.md`

Co-authored-by: Casey Lee <cplee@nektos.com>

pkg/container/docker_build.go

@@ -63,7 +63,6 @@ func NewDockerBuildExecutor(input NewDockerBuildExecutorInput) common.Executor {
 		}
 		return nil
 	}
-
 }
 func createBuildContext(contextDir string, relDockerfile string) (io.ReadCloser, error) {
 	log.Debugf("Creating archive for build context dir '%s' with relative dockerfile '%s'", contextDir, relDockerfile)

pkg/container/docker_pull.go

@@ -62,9 +62,7 @@ func NewDockerPullExecutor(input NewDockerPullExecutorInput) common.Executor {
 			return err
 		}
 		return nil
-
 	}
-
 }
 
 func cleanImage(image string) string {

pkg/container/docker_run.go

@@ -151,7 +151,6 @@ func (cr *containerReference) UpdateFromGithubEnv(env *map[string]string) common
 }
 
 func (cr *containerReference) Exec(command []string, env map[string]string) common.Executor {
-
 	return common.NewPipelineExecutor(
 		cr.connect(),
 		cr.find(),