Code Cleanup (#869)

- switch to golangci-lint for linting
- switch to gofmpt for formatting
- fix lint and fmt issues that came up from switch to new tools
- upgrade go-sdk to 0.23.2
- support pagination for listing tracked times
- remove `FixPullHeadSha` workaround (upstream fix has been merged for 5+ years at this point)
- standardize on US spelling (previously a mix of US&UK spelling)
- remove some unused code
- reduce some duplication in parsing state and issue type
- reduce some duplication in reading input for secrets and variables
- reduce some duplication with PR Review code
- report error for when yaml parsing fails
- various other misc cleanup

Reviewed-on: https://gitea.com/gitea/tea/pulls/869
Co-authored-by: techknowlogick <techknowlogick@gitea.com>
Co-committed-by: techknowlogick <techknowlogick@gitea.com>

modules/task/login_create.go

@@ -51,7 +51,7 @@ func CreateLogin(name, token, user, passwd, otp, scopes, sshKey, giteaURL, sshCe
 	// checks ...
 	// ... if we have a url
 	if len(giteaURL) == 0 {
-		return fmt.Errorf("You have to input Gitea server URL")
+		return fmt.Errorf("Gitea server URL is required")
 	}
 
 	// ... if there already exist a login with same name