fix ga workflow and publishign to hex.pm

Author: andreineculau

.github/workflows/ci.yml

@@ -62,7 +62,7 @@ jobs:
         run: make
       - shell: bash
         run: make test
-      - if: ${{ matrix.otp_vsn == 'latest' }}
+      - if: ${{ matrix.otp_vsn == 'slim' }}
         shell: bash
         run: make elvis docs
 
@@ -76,7 +76,7 @@ jobs:
           if [[ ${{ github.event.ref }} =~ ^refs/tags/[0-9]+\.[0-9]+\.[0-9]+ ]]; then
               echo ::set-output name=check::true
           fi
-      - if: ${{ matrix.otp_vsn == 'latest' && steps.is-semver-tag.outputs.check == 'true'}}
+      - if: ${{ matrix.otp_vsn == 'slim' && steps.is-semver-tag.outputs.check == 'true'}}
         name: Run make publish
         shell: bash
         env: