testautomation: avoid format related warnings by using a few pragma's

ci: enable -Werror to a few platforms

test/testautomation_platform.c

@@ -376,6 +376,11 @@ int platform_testSetErrorEmptyInput(void *arg)
    return TEST_COMPLETED;
 }
 
+#if defined(HAVE_WFORMAT_OVERFLOW)
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wformat-overflow"
+#endif
+
 /* !
  * \brief Tests SDL_SetError with invalid input
  * \sa
@@ -451,7 +456,7 @@ int platform_testSetErrorInvalidInput(void *arg)
              probeError,
              lastError);
    }
-   
+
    /* Clean up */
    SDL_ClearError();
    SDLTest_AssertPass("SDL_ClearError()");
@@ -459,6 +464,10 @@ int platform_testSetErrorInvalidInput(void *arg)
    return TEST_COMPLETED;
 }
 
+#if defined(HAVE_WFORMAT_OVERFLOW)
+#pragma GCC diagnostic pop
+#endif
+
 /* !
  * \brief Tests SDL_GetPowerInfo
  * \sa