Add GitHub workflow

and remove old .travis.yml

Author: perlpunk

.github/workflows/linux.yaml

@@ -0,0 +1,48 @@
+name: linux
+
+on:
+  push:
+    branches: [ '*' ]
+  pull_request:
+    branches: [ master ]
+  workflow_dispatch:
+    branches: [ '*' ]
+
+jobs:
+
+  perl:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        perl-version:
+        - '5.12-buster'
+        - '5.14-buster'
+        - '5.16-buster'
+        - '5.18-buster'
+        - '5.20-buster'
+        - '5.22-buster'
+        - '5.24-buster'
+        - '5.26-buster'
+        - '5.28-buster'
+        - '5.30-bullseye'
+        - '5.32-bullseye'
+        - '5.34-bullseye'
+        - '5.36-bookworm'
+        - '5.38-bookworm'
+        - 'latest'
+
+    container:
+      image: perl:${{ matrix.perl-version }}
+
+    steps:
+    - uses: actions/checkout@v3
+    - run: env | sort
+    - run: perl -V
+    - name: Install deps
+      run: >
+        cpanm --quiet --notest
+        Test::Deep List::MoreUtils YAML::PP Text::Table Ref::Util Moo
+        Module::Runtime List::Util
+    - name: Run Tests
+      run: prove -lr t
+

.gitignore

@@ -3,3 +3,4 @@ pod2htmd.tmp
 cover_db
 dev
 local
+.build