Adds execute permission to test runner

fetch_tester.sh

@@ -8,3 +8,5 @@ curl -X GET "https://git.p-epsilon.com/api/v1/repos/Deukhoofd/PokemonScriptTeste
     jq '.assets[] | select(.name=="PokemonScriptTester") .browser_download_url ' | 
     # Download the file at the given url
     xargs curl > PokemonScriptTester
+
+chmod +x PokemonScriptTester