### Godot version

72b59325cf7beba7e6e9170cf6023a079fd58672

### System information

Windows 11, 22H2

### Issue description

There is an error emitting at editor and project startup: 
![image](https://github.com/godotengine/godot/assets/3036176/18062a93-3243-410e-8fb3-645dea184aea)

Looks like a regression after https://github.com/godotengine/godot/pull/76836, (it's happening on Windows after instalment by default). There should be a way to fix it, either by disable that error or providing a link where that certificate can be downloaded and installed.

### Steps to reproduce

Simply run any project or editor.

### Minimal reproduction project

No need, too easy to reproduce.
int ret = 0;
	if (p_public_only) {
		ret = mbedtls_pk_parse_public_key(&pkey, (unsigned char *)p_string_key.utf8().get_data(), p_string_key.utf8().size());
	} else {
		ret = mbedtls_pk_parse_key(&pkey, (unsigned char *)p_string_key.utf8().get_data(), p_string_key.utf8().size(), nullptr, 0);
	}
	ERR_FAIL_COND_V_MSG(ret, FAILED, "Error parsing key '" + itos(ret) + "'.");
	public_only = p_public_only;
	return OK;
}
String CryptoKeyMbedTLS::save_to_string(bool p_public_only) {
	unsigned char w[16000];
	memset(w, 0, sizeof(w));
	int ret = 0;
	if (p_public_only) {
		ret = mbedtls_pk_write_pubkey_pem(&pkey, w, sizeof(w));
	} else {
		ret = mbedtls_pk_write_key_pem(&pkey, w, sizeof(w));
	}
	if (ret != 0) {
		mbedtls_platform_zeroize(w, sizeof(w));
		ERR_FAIL_V_MSG("", "Error saving key '" + itos(ret) + "'.");
	}
	String s = String::utf8((char *)w);
	return s;
}
X509Certificate *X509CertificateMbedTLS::create() {