Use Julia 1.x for doc builds on Travis and GHA (#174)

templates/github/workflows/ci.yml

@@ -66,7 +66,7 @@ jobs:
       - uses: actions/checkout@v2
       - uses: julia-actions/setup-julia@v1
         with:
-          version: '1.0'
+          version: '1'
       - run: |
           julia --project=docs -e '
             using Pkg

templates/travis.yml

@@ -40,7 +40,7 @@ jobs:
 {{#HAS_DOCUMENTER}}
   include:
     - stage: Documentation
-      julia: {{{VERSION}}}
+      julia: 1
       script: |
         julia --project=docs -e '
           using Pkg

test/fixtures/DocumenterGitHubActions/.github/workflows/ci.yml

@@ -43,7 +43,7 @@ jobs:
       - uses: actions/checkout@v2
       - uses: julia-actions/setup-julia@v1
         with:
-          version: '1.0'
+          version: '1'
       - run: |
           julia --project=docs -e '
             using Pkg

test/fixtures/DocumenterTravis/.travis.yml

@@ -21,7 +21,7 @@ jobs:
     - julia: nightly
   include:
     - stage: Documentation
-      julia: 1.0
+      julia: 1
       script: |
         julia --project=docs -e '
           using Pkg