Include broken GHC gpg verify for now

Author: AlistairB

8.10/buster/Dockerfile

@@ -50,6 +50,8 @@ RUN cd /tmp && \
   export GNUPGHOME="$(mktemp -d)" && \
   curl -sSLO https://downloads.haskell.org/~ghc/$GHC/ghc-$GHC-x86_64-deb10-linux.tar.xz && \
   curl -sSLO https://downloads.haskell.org/~ghc/$GHC/ghc-$GHC-x86_64-deb10-linux.tar.xz.sig && \
+  gpg --batch --keyserver hkps://pgp.mit.edu:443 --receive-keys 588764FBE22D19C4 && \
+  gpg --batch --verify ghc-$GHC-x86_64-deb10-linux.tar.xz.sig ghc-$GHC-x86_64-deb10-linux.tar.xz && \
   tar xf ghc-$GHC-x86_64-deb10-linux.tar.xz && \
   cd ghc-$GHC && \
   ./configure --prefix /opt/ghc/$GHC && \