builder/remotecontext/git: remove redundant capturing of loop vars (copyloopvar)

builder/remotecontext/git/gitutils_test.go:116:3: The copy of the 'for' variable "tc" can be deleted (Go 1.22+) (copyloopvar)
            tc := tc
            ^

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

cli/command/image/build/internal/git/gitutils_test.go

@@ -113,7 +113,6 @@ func TestParseRemoteURL(t *testing.T) {
 	}
 
 	for _, tc := range tests {
-		tc := tc
 		t.Run(tc.doc, func(t *testing.T) {
 			repo, err := parseRemoteURL(tc.url)
 			assert.NilError(t, err)