Revert "Fix CI"

This reverts commit f7099e6.

Author: terasakisatoshi

.github/workflows/CI.yml

@@ -11,11 +11,6 @@ concurrency:
   # Cancel intermediate builds: only if it is a pull request build.
   group: ${{ github.workflow }}-${{ github.ref }}
   cancel-in-progress: ${{ startsWith(github.ref, 'refs/pull/') }}
-
-permissions:
-  actions: write
-  contents: read
-
 jobs:
   test:
     name: Julia ${{ matrix.version }} - ${{ matrix.os }} - ${{ matrix.arch }} - ${{ github.event_name }}
@@ -24,7 +19,7 @@ jobs:
       fail-fast: false
       matrix:
         version:
-          - 'lts'
+          - '1.9'
           - '1'
         os:
           - ubuntu-latest
@@ -38,7 +33,7 @@ jobs:
         with:
           version: ${{ matrix.version }}
           arch: ${{ matrix.arch }}
-      - uses: julia-actions/cache@v2
+      - uses: julia-actions/cache@v1
       - uses: julia-actions/julia-buildpkg@v1
       - uses: julia-actions/julia-runtest@v1
         continue-on-error: ${{ matrix.version == 'nightly' }}