Work around old engines port parsing bug

[Frassle]

Also make sure we're running integration tests on Windows and MacOS not just linux, and add the Provider test to the test list.

[pulumi-staging[bot]]

:tropical_drink: The Update for pulumi/testproj/zcbstimi was successful.

Resource Changes

    Name               Type                 Operation
+   testproj-zcbstimi  pulumi:pulumi:Stack  create

[pulumi-staging[bot]]

:tropical_drink: The Update (preview) for pulumi/testproj/ydkalzxu was successful.

Resource Changes

    Name               Type                 Operation
+   testproj-ydkalzxu  pulumi:pulumi:Stack  create

[pulumi-staging[bot]]

:tropical_drink: The Update for pulumi/testproj/ydkalzxu was successful.

Resource Changes

    Name               Type                 Operation
+   testproj-ydkalzxu  pulumi:pulumi:Stack  create

[pulumi-staging[bot]]

:tropical_drink: The Update for pulumi/testproj/hdovnnah was successful.

Resource Changes

    Name               Type                 Operation
+   testproj-hdovnnah  pulumi:pulumi:Stack  create

[pulumi-staging[bot]]

:tropical_drink: The Update (preview) for pulumi/testproj/hdovnnah was successful.

Resource Changes

    Name               Type                 Operation
+   testproj-hdovnnah  pulumi:pulumi:Stack  create