Upgarde ghcup version to 0.1.50.2

Author: harendra-kumar

.github/workflows/haskell.yml

@@ -14,7 +14,7 @@ jobs:
       LC_ALL: C.UTF-8
       BUILD: ${{ matrix.build }}
       # For updating see: https://downloads.haskell.org/~ghcup/
-      GHCUP_VERSION: 0.1.20.0
+      GHCUP_VERSION: 0.1.50.2
       DOCSPEC_URL: https://github.com/phadej/cabal-extras/releases/download/cabal-docspec-0.0.0.20210111/cabal-docspec-0.0.0.20210111.xz
       DOCSPEC_OPTIONS: "--timeout 60 --check-properties --property-variables xs"
       GHCUP_GHC_OPTIONS: ${{ matrix.ghcup_ghc_options }}

.github/workflows/regression-check.yml

@@ -71,7 +71,7 @@ jobs:
 
     - name: Download ghc
       run: |
-        GHCUP_VER=0.1.18.0
+        GHCUP_VER=0.1.50.2
         curl -sL -o ./ghcup https://downloads.haskell.org/~ghcup/$GHCUP_VER/x86_64-linux-ghcup-$GHCUP_VER
         chmod +x ./ghcup
         GHCVER=9.10.3