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>

cmd/pulls/clean.go

@@ -35,7 +35,7 @@ func runPullsClean(_ stdctx.Context, cmd *cli.Command) error {
 	ctx := context.InitCommand(cmd)
 	ctx.Ensure(context.CtxRequirement{LocalRepo: true})
 	if ctx.Args().Len() != 1 {
-		return fmt.Errorf("Must specify a PR index")
+		return fmt.Errorf("pull request index is required")
 	}
 
 	idx, err := utils.ArgToIndex(ctx.Args().First())