Clean up CI a bit

Author: JamesWrigley

.github/dependabot.yml

@@ -5,3 +5,7 @@ updates:
     directory: "/" # Location of package manifests
     schedule:
       interval: "monthly"
+  - package-ecosystem: "julia"
+    directory: "/"
+    schedule:
+      interval: "weekly"

.github/workflows/ci.yml

@@ -67,17 +67,7 @@ jobs:
           # GitHub will automatically expand to the correct value (`x86_64` or `aarch64`)
           # based on the architecture of the underlying GitHub Runner (virtual machine).
           arch: ${{ github.ref == '32' && 'x86' || runner.arch }}
-      - uses: actions/cache@v5
-        env:
-          cache-name: cache-artifacts
-        with:
-          path: ~/.julia/artifacts
-          key: ${{ runner.os }}-test-${{ env.cache-name }}-${{ hashFiles('**/Project.toml') }}
-          restore-keys: |
-            ${{ runner.os }}-test-${{ env.cache-name }}-
-            ${{ runner.os }}-test-${{ matrix.os }}
-            ${{ runner.os }}-
-      - uses: julia-actions/julia-buildpkg@v1
+      - uses: julia-actions/cache@v3
       - name: Decide what the value of JULIA_NUM_THREADS should be
         id: decide-numthreads-str
         run: |
@@ -115,6 +105,7 @@ jobs:
       - uses: julia-actions/setup-julia@latest
         with:
           version: '1'
+      - uses: julia-actions/cache@v3
       - name: Install dependencies
         run: julia --project=docs/ -e 'using Pkg; Pkg.instantiate()'
       - name: Build and deploy
@@ -130,8 +121,9 @@ jobs:
           persist-credentials: false
       - uses: julia-actions/setup-julia@latest
         with:
-          version: '1.12'
+          version: '1'
           # version: 'nightly'
+      - uses: julia-actions/cache@v3
       - run: julia --color=yes --project=ci/jet -e 'import Pkg; Pkg.instantiate()'
       - name: Run the JET tests
         run: julia --color=yes --project=ci/jet ci/jet/check.jl

.github/workflows/tagbot.yml

@@ -0,0 +1,18 @@
+name: TagBot
+on:
+  issue_comment:
+    types:
+      - created
+  workflow_dispatch:
+    inputs:
+      lookback:
+        description: "[DEPRECATED] No longer has any effect"
+        default: "3"
+jobs:
+  TagBot:
+    if: github.event_name == 'workflow_dispatch' || github.actor == 'JuliaTagBot'
+    runs-on: ubuntu-latest
+    steps:
+      - uses: JuliaRegistries/TagBot@v1
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}