make Julia nightly CI a separate workflow

Ref #301 (comment)

Author: simeonschaub

.github/workflows/CI.yml

@@ -35,10 +35,6 @@ jobs:
           - os: ubuntu-latest
             version: "1.5"
             arch: x64
-          # Julia Nightly
-          - os: ubuntu-latest
-            version: "nightly"
-            arch: x64
     steps:
       - uses: actions/checkout@v2
       - uses: julia-actions/setup-julia@v1

.github/workflows/JuliaNightly.yml

@@ -0,0 +1,31 @@
+name: JuliaNightly
+# Nightly Scheduled Julia Nightly Run
+on:
+  push:
+    branches: [master]
+    tags: ["*"]
+  pull_request:
+jobs:
+  test:
+    name: Julia Nightly - Ubuntu - x64
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: julia-actions/setup-julia@v1
+        with:
+          version: nightly
+          arch: x64
+      - uses: actions/cache@v2
+        env:
+          cache-name: julia-nightly-cache-artifacts
+        with:
+          path: ~/.julia/artifacts
+          key: ${{ env.cache-name }}-${{ hashFiles('**/Project.toml') }}
+          restore-keys: |
+            ${{ env.cache-name }}-
+      - uses: julia-actions/julia-buildpkg@latest
+      - uses: julia-actions/julia-runtest@latest
+      - uses: julia-actions/julia-processcoverage@v1
+      - uses: codecov/codecov-action@v1
+        with:
+          file: lcov.info