Delete much CI. Upgrade upload-artifact@v4

Author: filchristou

.github/workflows/ci.yml

@@ -18,13 +18,9 @@ jobs:
       fail-fast: false
       matrix:
         version:
-          - 'nightly'
           - '1'
-          - '1.6'
         os:
           - ubuntu-latest
-          - macos-latest
-          - windows-latest
         arch:
           - x64
         include:

.github/workflows/runbenchandupload.yml

@@ -54,7 +54,7 @@ jobs:
           PR_NUMBER: ${{ github.event.pull_request.number }}
         run: |
           echo $PR_NUMBER > .benchmarkci/pr_number
-      - uses: actions/upload-artifact@v3
+      - uses: actions/upload-artifact@v4
         with: 
           name: BenchmarkResults
           path: .benchmarkci/