CI: Set default values for have* outputs in macos-codesigning action

The "provisioning" and "notarization" steps that set the
"haveProvisioningProfile" and "haveNotarizationUser" outputs
respectively only run if "haveCodesignIdent" has evaluated to true in
the prior "codesign" step.
This means that if "haveCodesignIdent" is false, the other two outputs
are left unset, evaluating their "value" expressions (and as such the
output of the action) to empty instead of false.

This issue was found in the equivalent action in obs-plugintemplate. As
that action is basically a mirror from the obs-studio action, let's fix
it here too.

.github/actions/setup-macos-codesigning/action.yaml

@@ -27,13 +27,13 @@ outputs:
     value: ${{ steps.codesign.outputs.haveCodesignIdent }}
   haveProvisioningProfile:
     description: True if necessary provisioning profile credentials were found
-    value: ${{ steps.provisioning.outputs.haveProvisioningProfile }}
+    value: ${{ steps.provisioning.outputs.haveProvisioningProfile || steps.codesign.outputs.haveProvisioningProfile }}
   provisioningProfileUUID:
     description: UUID of imported provisioning profile
     value: ${{ steps.provisioning.outputs.provisioningProfileUUID }}
   haveNotarizationUser:
     description: True if necessary notarization credentials were found
-    value: ${{ steps.notarization.outputs.haveNotarizationUser }}
+    value: ${{ steps.notarization.outputs.haveNotarizationUser || steps.codesign.outputs.haveNotarizationUser }}
   codesignIdent:
     description: Code signing identity
     value: ${{ steps.codesign.outputs.codesignIdent }}
@@ -95,6 +95,8 @@ runs:
           print "codesignTeam=${team_id}" >> $GITHUB_OUTPUT
         } else {
           print 'haveCodesignIdent=false' >> $GITHUB_OUTPUT
+          print 'haveProvisioningProfile=false' >> $GITHUB_OUTPUT
+          print 'haveNotarizationUser=false' >> $GITHUB_OUTPUT
         }
 
     - name: Provisioning Profile 👤