Utils: Rename QtcProcess -> Process

Task-number: QTCREATORBUG-29102
Change-Id: Ibc264f9db6a32206e4097766ee3f7d0b35225a5c
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: <github-actions-qt-creator@cristianadam.eu>
Reviewed-by: hjk <hjk@qt.io>

src/plugins/git/gitgrep.cpp

@@ -161,7 +161,7 @@ public:
                 });
         arguments << "--" << filterArgs << exclusionArgs;
 
-        QtcProcess process;
+        Process process;
         process.setEnvironment(m_environment);
         process.setCommand({m_vcsBinary, arguments});
         process.setWorkingDirectory(m_directory);