rsu-connector/unittest: add missing newline at end of file

When saving the file with a linux editor the missing new line is added.
The git programme, after saving the file, always shows
'No newline at end of file' for a `git diff`.

To make the editor happy, the commit adds the missing new line at the
end of file to every file where it is missing.

Signed-off-by: Florian Eckert <fe@dev.tdt.de>

src/rsu-connector/unittest/CustomHSMTest.cpp

@@ -249,4 +249,4 @@ ih2t7Bs4FNzuO/r7BxrjPJmFzD+cDvUDBNF+
 
 )";
     CHECK( !hsm->setCertificate( std::vector<char>( expectedCert.begin(), expectedCert.end() ) ) );
-}
+}

src/rsu-connector/unittest/MockPortForwardingActor.h

@@ -54,4 +54,4 @@ struct MockPortForwardingActor : public Command::IPortForwardingActor
         ReloadFirewallCalled = true;
         return ReloadFirewallReturn;
     }
-};
+};

src/rsu-connector/unittest/MockVPNActor.h

@@ -54,4 +54,4 @@ struct MockVPNActor : public Command::IVPNActor
         config                     = GetVPNResponse;
         return GetVPNConfigurationsReturn;
     }
-};
+};