ci: Update to use ubuntu-24.04

Author: badlop

.github/workflows/ci.yml

@@ -9,18 +9,18 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        otp: ['19.3', '21.3', 24]
-    runs-on: ubuntu-20.04
+        otp: [20, 24, 25, 26, 27]
+    runs-on: ubuntu-24.04
     container:
       image: erlang:${{ matrix.otp }}
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
     - run: rebar3 compile
     - run: rebar3 xref
     - run: rebar3 dialyzer
     - run: rebar3 eunit -v
     - name: Send to Coveralls
-      if: matrix.otp == 24
+      if: matrix.otp == 26
       env:
         GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
       run: |