Revert "disable prometheus checkPhase"

This reverts commit c0ce6cd.

Author: zowoq

dev/packages.nix

@@ -10,9 +10,6 @@
     src = inputs.hydra;
     buildInputs = o.buildInputs ++ [ final.perlPackages.DBIxClassHelpers ];
   });
-  prometheus = prev.prometheus.overrideAttrs (_: {
-    doCheck = false;
-  });
   sk-libfido2 = prev.openssh.overrideAttrs (o: {
     pname = "sk-libfido2";
     # rebase of https://github.com/openssh/openssh-portable/commit/ca0697a90e5720ba4d76cb0ae9d5572b5260a16c