Fix: Access function through self (#29)

Co-authored-by: Suraj Jacob <28795567+jacobmsft@users.noreply.github.com>

Author: ISnackable

container/libs/codeql.py

@@ -85,11 +85,11 @@ def install_codeql_cli(self, download_path):
         ret1 = check_output_wrapper(f'unzip {download_path} -d {codeql_dir}', shell=True)
 
     def precompile_queries(self):
-        execute_codeql_command(f' query compile --search-path {self.CODEQL_HOME} {self.CODEQL_HOME}/codeql-repo/*/ql/src/codeql-suites/*.qls')
+        self.execute_codeql_command(f' query compile --search-path {self.CODEQL_HOME} {self.CODEQL_HOME}/codeql-repo/*/ql/src/codeql-suites/*.qls')
 
     def execute_codeql_command(self, args):
         ret_string = check_output_wrapper(f'{self.CODEQL_HOME}/codeql/codeql {args}', shell=True)
         if ret_string is CalledProcessError:
             logger.error("Could not run codeql command")
             exit(self.ERROR_EXECUTING_CODEQL)
-        return bytearray(ret_string).decode('utf-8')
+        return bytearray(ret_string).decode('utf-8')