add bcc 0.23.0 to ci (#187)

Adds a ci run with bcc 0.23.0

.github/workflows/cargo.yml

@@ -213,6 +213,25 @@ jobs:
         key: ${{ env.DIST }}-${{ env.LLVM }}-${{ env.BCC }}
     - name: Run CI
       run: bash -e build/ci.sh
+  focal-llvm_9-bcc_v0_23_0:
+    name: focal / llvm 9 / bcc 0.23.0
+    runs-on: ubuntu-20.04
+    env:
+      BCC: "0.23.0"
+      DIST: focal
+      FEATURES: v0_23_0
+      LLVM: "9"
+      STATIC: true
+    steps:
+    - uses: actions/checkout@v2
+    - name: BCC Build Cache
+      uses: actions/cache@v2
+      with:
+        path: |
+          deps
+        key: ${{ env.DIST }}-${{ env.LLVM }}-${{ env.BCC }}
+    - name: Run CI
+      run: bash -e build/ci.sh
   rustfmt:
     runs-on: ubuntu-latest
     steps: