foundationdb61: fix build w/glibc-2.30

pkgs/servers/foundationdb/default.nix

···
     sha256 = "11y434w68cpk7shs2r22hyrpcrqi8vx02cw7v5x79qxvnmdxv2an";
   };
 
+  glibc230-fix = fetchpatch {
+    url = "https://github.com/Ma27/foundationdb/commit/e133cb974b9a9e4e1dc2d4ac15881d31225c0197.patch";
+    sha256 = "1v9q2fyc73msigcykjnbmfig45zcrkrzcg87b0r6mxpnby8iryl1";
+  };
+
 in with builtins; {
 
   # Older versions use the bespoke 'vsmake' build system
···
     patches = [
       ./patches/clang-libcxx.patch
       ./patches/suppress-clang-warnings.patch
+      glibc230-fix
     ];
   };