Use "lts" version specifier in CI script (#366)

Author: jishnub

.github/workflows/ci.yml

@@ -38,7 +38,7 @@ jobs:
       fail-fast: false
       matrix:
         version:
-          - '1.6'
+          - 'lts'
           - '1'
         os:
           - ubuntu-latest
@@ -48,7 +48,7 @@ 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 }}