Add constraint set servant 0.20

Author: maksbotan

.github/workflows/haskell-ci.yml

@@ -245,6 +245,10 @@ jobs:
       - name: prepare for constraint sets
         run: |
           rm -f cabal.project.local
+      - name: constraint set servant-0.20
+        run: |
+          if [ $((HCNUMVER >= 81000)) -ne 0 ] ; then $CABAL v2-build $ARG_COMPILER --disable-tests --disable-benchmarks --constraint='servant ==0.20' --dependencies-only -j2 all ; fi
+          if [ $((HCNUMVER >= 81000)) -ne 0 ] ; then $CABAL v2-build $ARG_COMPILER --disable-tests --disable-benchmarks --constraint='servant ==0.20' all ; fi
       - name: constraint set servant-0.19
         run: |
           if [ $((HCNUMVER >= 80800 && HCNUMVER < 90400)) -ne 0 ] ; then $CABAL v2-build $ARG_COMPILER --disable-tests --disable-benchmarks --constraint='servant ==0.19' --dependencies-only -j2 all ; fi

cabal.haskell-ci

@@ -29,3 +29,7 @@ constraint-set servant-0.18.2
 constraint-set servant-0.19
   ghc: >= 8.8 && <9.4
   constraints: servant ==0.19
+
+constraint-set servant-0.20
+  ghc: >= 8.10 && <9.8
+  constraints: servant ==0.20