Use only GitHub Actions for CI

Author: tarleb

.github/workflows/ci.yml

@@ -5,12 +5,12 @@ name: CI
 on:
   pull_request:
   push:
-    branches: [master]
+    branches: [main]
 
 jobs:
   build:
     name: ghc ${{ matrix.versions.ghc }}
-    runs-on: ubuntu-16.04
+    runs-on: ubuntu-latest
     strategy:
       matrix:
         versions:
@@ -22,17 +22,17 @@ jobs:
             cabal: '2.4'
           - ghc: '8.6.5'
             cabal: '3.2'
-          - ghc: '8.8.3'
-            cabal: '3.2'
-          - ghc: '8.10.1'
-            cabal: '3.2'
+          - ghc: '8.8.4'
+            cabal: '3.4'
+          - ghc: '8.10.2'
+            cabal: '3.4'
 
     steps:
     - uses: actions/checkout@v2
       if: >-
         github.event.action == 'opened' ||
         github.event.action == 'synchronize' ||
-        github.event.ref == 'refs/heads/master'
+        github.event.ref == 'refs/heads/main'
 
     - uses: actions/setup-haskell@v1
       name: Setup Haskell

.travis.yml

@@ -19,8 +19,8 @@ tested-with:         GHC == 8.0.2
                    , GHC == 8.2.2
                    , GHC == 8.4.4
                    , GHC == 8.6.5
-                   , GHC == 8.8.3
-                   , GHC == 8.10.1
+                   , GHC == 8.8.4
+                   , GHC == 8.10.2
 
 source-repository head
   type:                git