test: fix grpc mTLS dialoptions test

This was incorrectly passing in the cert and key backwards which
resulted in not actually getting mTLS credentials, but instead
insecure credentials.

When insecure credentials are used, skipToken means we don't add a
addPerRPCCredentials. When it is a secure TLS credential then
addPerRPCCredentials increases the dialoption count by one.

Author: UnwashedMeme

internal/grpc/grpc_test.go

@@ -103,7 +103,7 @@ func Test_GetDialOptions(t *testing.T) {
 		{
 			name:        "Test 2: DialOptions mTLS",
 			agentConfig: types.AgentConfig(),
-			expected:    7,
+			expected:    8,
 			createCerts: true,
 		},
 		{
@@ -171,8 +171,8 @@ func Test_GetDialOptions(t *testing.T) {
 				key, cert := helpers.GenerateSelfSignedCert(t)
 				_, ca := helpers.GenerateSelfSignedCert(t)
 
-				keyContents := helpers.Cert{Name: keyFileName, Type: certificateType, Contents: key}
-				certContents := helpers.Cert{Name: certFileName, Type: privateKeyType, Contents: cert}
+				keyContents := helpers.Cert{Name: keyFileName, Type: privateKeyType, Contents: key}
+				certContents := helpers.Cert{Name: certFileName, Type: certificateType, Contents: cert}
 				caContents := helpers.Cert{Name: caFileName, Type: certificateType, Contents: ca}
 
 				helpers.WriteCertFiles(t, tmpDir, keyContents)