Update Julia versions in CI

Author: MilesCranmer

.github/workflows/CI.yml

@@ -26,7 +26,7 @@ jobs:
         shell: bash
     strategy:
       matrix:
-        julia-version: ['1.7.1']
+        julia-version: ['1.8.2']
         python-version: ['3.9']
         os: [ubuntu-latest]
 

.github/workflows/CI_Windows.yml

@@ -26,9 +26,9 @@ jobs:
         shell: bash
     strategy:
       matrix:
-        julia-version: ['1.6', '1.7.1']
+        julia-version: ['1.6', '1.8.2']
         python-version: ['3.9']
-        os: [windows-2019]
+        os: [windows-latest]
 
     steps:
       - uses: actions/checkout@v1.0.0

.github/workflows/CI_docker.yml

@@ -28,7 +28,7 @@ jobs:
         shell: bash
     strategy:
       matrix:
-        julia-version: ['1.7.1']
+        julia-version: ['1.8.2']
         python-version: ['3.9.10']
         os: [ubuntu-latest]
         arch: ['linux/x86_64']

.github/workflows/CI_mac.yml

@@ -26,18 +26,18 @@ jobs:
         shell: bash
     strategy:
       matrix:
-        julia-version: ['1.7.1']
+        julia-version: ['1.8.2']
         python-version: ['3.9']
         os: [macos-latest]
 
     steps:
-      - uses: actions/checkout@v1.0.0
+      - uses: actions/checkout@v1
       - name: "Set up Julia"
-        uses: julia-actions/setup-julia@v1.6.0
+        uses: julia-actions/setup-julia@v1
         with:
           version: ${{ matrix.julia-version }}
       - name: "Cache dependencies"
-        uses: actions/cache@v1 # Thanks FromFile.jl
+        uses: actions/cache@v3
         env:
           cache-name: cache-artifacts
         with: