Fix CI workflow on pull_request

Author: dalcinl

.github/workflows/ci.yml

@@ -36,55 +36,55 @@ on:  # yamllint disable-line rule:truthy
 jobs:
 
   mpich-43:
-    if: ${{ !inputs || inputs.mpich }}
+    if: ${{ github.event_name == 'pull_request' || inputs.mpich }}
     uses: ./.github/workflows/cd-wheel.yml
     with:
       os-arch: ${{ inputs.os-arch }}
       mpiname: mpich
       version:
 
   mpich-42:
-    if: ${{ !inputs || inputs.mpich }}
+    if: ${{ github.event_name == 'pull_request' || inputs.mpich }}
     uses: ./.github/workflows/cd-wheel.yml
     with:
       os-arch: ${{ inputs.os-arch }}
       mpiname: mpich
       version: 4.2.3
 
   mpich-41:
-    if: ${{ !inputs || inputs.mpich }}
+    if: ${{ github.event_name == 'pull_request' || inputs.mpich }}
     uses: ./.github/workflows/cd-wheel.yml
     with:
       os-arch: ${{ inputs.os-arch }}
       mpiname: mpich
       version: 4.1.3
 
   mpich-40:
-    if: ${{ !inputs || inputs.mpich }}
+    if: ${{ github.event_name == 'pull_request' || inputs.mpich }}
     uses: ./.github/workflows/cd-wheel.yml
     with:
       os-arch: ${{ inputs.os-arch }}
       mpiname: mpich
       version: 4.0.3
 
   mpich-34:
-    if: ${{ !inputs || inputs.mpich }}
+    if: ${{ github.event_name == 'pull_request' || inputs.mpich }}
     uses: ./.github/workflows/cd-wheel.yml
     with:
       os-arch: ${{ inputs.os-arch }}
       mpiname: mpich
       version: 3.4.3
 
   openmpi-50:
-    if: ${{ !inputs || inputs.openmpi }}
+    if: ${{ github.event_name == 'pull_request' || inputs.openmpi }}
     uses: ./.github/workflows/cd-wheel.yml
     with:
       os-arch: ${{ inputs.os-arch }}
       mpiname: openmpi
       version:
 
   openmpi-41:
-    if: ${{ !inputs || inputs.openmpi }}
+    if: ${{ github.event_name == 'pull_request' || inputs.openmpi }}
     uses: ./.github/workflows/cd-wheel.yml
     with:
       os-arch: ${{ inputs.os-arch }}