PPA: Stop building for Ubuntu eoan, its EOL

Launchpad no longer accepts uploads for eoan.

.github/workflows/package.yml

@@ -7,7 +7,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        distro: [ubuntu-groovy, ubuntu-focal, ubuntu-eoan]
+        distro: [ubuntu-groovy, ubuntu-focal]
     steps:
       - uses: actions/checkout@v2
 
@@ -46,14 +46,6 @@ jobs:
           args: --no-sign
           ppa: ${{ steps.ppa.outputs.ppa }}
 
-      - uses: legoktm/gh-action-build-deb@ubuntu-eoan
-        if: matrix.distro == 'ubuntu-eoan'
-        name: Build package for ubuntu-eoan
-        id: build-ubuntu-eoan
-        with:
-          args: --no-sign
-          ppa: ${{ steps.ppa.outputs.ppa }}
-
       - uses: actions/upload-artifact@v2
         with:
           name: Packages for ${{ matrix.distro }}