Set Git messages to English for TestRemoteLoad_LocalProtocol

Ensure consistent error message matching by setting LC_ALL=C in
TestRemoteLoad_LocalProtocol, preventing locale-based variations
in Git output.

Signed-off-by: Arthur Diniz <arthurbdiniz@gmail.com>

api/krusty/remoteloader_test.go

@@ -282,6 +282,8 @@ resources:
 		},
 	}
 
+	t.Setenv("LC_ALL", "C")
+
 	for _, test := range tests {
 		t.Run(test.name, func(t *testing.T) {
 			if test.skip {