Remove context from git struct (#33793)

Argument is moved from struct init in command run, which lets us remove
context from struct.

modules/git/repo_commitgraph.go

@@ -12,7 +12,7 @@ import (
 // this requires git v2.18 to be installed
 func WriteCommitGraph(ctx context.Context, repoPath string) error {
 	if DefaultFeatures().CheckVersionAtLeast("2.18") {
-		if _, _, err := NewCommand(ctx, "commit-graph", "write").RunStdString(&RunOpts{Dir: repoPath}); err != nil {
+		if _, _, err := NewCommand("commit-graph", "write").RunStdString(ctx, &RunOpts{Dir: repoPath}); err != nil {
 			return fmt.Errorf("unable to write commit-graph for '%s' : %w", repoPath, err)
 		}
 	}