Use lts version in CI (#237)

Author: jishnub

.github/workflows/ci.yml

@@ -37,7 +37,7 @@ jobs:
       fail-fast: false
       matrix:
         version:
-          - '1.6'
+          - 'lts'
           - '1'
         os:
           - ubuntu-latest
@@ -47,7 +47,7 @@ jobs:
           - x64
     steps:
       - uses: actions/checkout@v4
-      - uses: julia-actions/setup-julia@v2
+      - uses: julia-actions/setup-julia@v2.2
         with:
           version: ${{ matrix.version }}
           arch: ${{ matrix.arch }}
@@ -73,9 +73,9 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-      - uses: julia-actions/setup-julia@v2
+      - uses: julia-actions/setup-julia@v2.2
         with:
-          version: '1'
+          version: 'lts'
       - run: |
           julia --project=docs -e '
             using Pkg