upgrade workflows to get wheels fix

Author: asottile

.github/workflows/main.yml

@@ -8,19 +8,19 @@ on:
 
 jobs:
   main-windows:
-    uses: asottile/workflows/.github/workflows/tox.yml@v1.0.0
+    uses: asottile/workflows/.github/workflows/tox.yml@v1.4.2
     with:
       env: '["py38"]'
       os: windows-latest
       wheel-tags: true
   main-macos:
-    uses: asottile/workflows/.github/workflows/tox.yml@v1.0.0
+    uses: asottile/workflows/.github/workflows/tox.yml@v1.4.2
     with:
       env: '["py38"]'
       os: macos-latest
       wheel-tags: true
   main-linux:
-    uses: asottile/workflows/.github/workflows/tox.yml@v1.0.0
+    uses: asottile/workflows/.github/workflows/tox.yml@v1.4.2
     with:
       env: '["py38"]'
       os: ubuntu-latest