fixup! component/proxysql: add a missing checksum to download patch

Probably I made a mistake when getting adding this md5sum in
70070a61 . This is not a case where the
checksum changed, we did not have checksum before anyway

component/proxysql/buildout.cfg

@@ -47,4 +47,4 @@ environment =
 patch-options = -p1
 patches =
 # PR #3402 (mariadb_client: backport patch to fix syntax error in cmake 3.20)
-  https://github.com/sysown/proxysql/commit/a3cfa56d257219f7610cd5711045bb5d84485a91.patch#bb034744fd9b676484d34a269ab2ed07
+  https://github.com/sysown/proxysql/commit/a3cfa56d257219f7610cd5711045bb5d84485a91.patch#34fd6366d4a75fde821cee93d25eee10