Fix CI for Ubuntu and MacOS (#1388)

Seems like ubuntu-18.04 and macos-10.15 are no longer hosted by GitHub. Switching to ubuntu-latest (at the time of writing: 22.04) and macos-latest (at the time of writing 12) works.

[GitHub hosted runners](https://docs.github.com/en/actions/using-github-hosted-runners/about-github-hosted-runners#supported-runners-and-hardware-resources)

.github/workflows/cd.yml

@@ -12,14 +12,16 @@ jobs:
   cancel_previous_runs:
     runs-on: ubuntu-latest
     name: Cancel Previous Runs
+    permissions:
+      actions: write
     steps:
-    - uses: styfle/cancel-workflow-action@0.8.0
+    - uses: styfle/cancel-workflow-action@0.9.1
       with:
         access_token: ${{ github.token }}
 
   test_ubuntu:
     needs: [cancel_previous_runs]
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-latest
     name: Test Ubuntu
     steps:
     - uses: actions/checkout@v2
@@ -43,7 +45,7 @@ jobs:
 
   test_macos:
     needs: [cancel_previous_runs]
-    runs-on: macos-10.15
+    runs-on: macos-latest
     name: Test macOS
     steps:
     - uses: actions/checkout@v2
@@ -91,7 +93,7 @@ jobs:
   build_release_macos:
     needs: [test_ubuntu, test_windows, test_macos]
     name: Build Release macOS
-    runs-on: macos-10.15
+    runs-on: macos-latest
     steps:
     - uses: actions/checkout@v2
     - name: Install Dependencies