Add section for linting with 3.8

Author: ocelotl

.github/workflows/lint.yml

@@ -9,7 +9,7 @@ env:
   CORE_REPO_SHA: 955c92e91b5cd4bcfb43c39efcef086b040471d2
 
 jobs:
-  lint:
+  lint-3_11:
     strategy:
       fail-fast: false  # ensures the entire test matrix is run, even if one permutation fails
       matrix:
@@ -56,7 +56,6 @@ jobs:
           - "instrumentation-redis"
           - "instrumentation-remoulade"
           - "instrumentation-celery"
-          - "instrumentation-sklearn"
           - "instrumentation-system-metrics"
           - "instrumentation-threading"
           - "instrumentation-tornado"
@@ -92,3 +91,31 @@ jobs:
           key: v7-build-tox-cache-${{ matrix.package }}-${{ hashFiles('tox.ini', 'gen-requirements.txt', 'dev-requirements.txt') }}
       - name: run tox
         run: tox -e lint-${{ matrix.package }}
+
+  lint-3_8:
+    strategy:
+      fail-fast: false  # ensures the entire test matrix is run, even if one permutation fails
+      matrix:
+        package:
+          - "instrumentation-sklearn"
+        os: [ubuntu-20.04]
+    runs-on: ubuntu-20.04
+    steps:
+      - name: Checkout Contrib Repo @ SHA - ${{ github.sha }}
+        uses: actions/checkout@v4
+      - name: Set up Python 3.8
+        uses: actions/setup-python@v5
+        with:
+          python-version: 3.8
+      - name: Install tox
+        run: pip install tox
+      - name: Cache tox environment
+        # Preserves .tox directory between runs for faster installs
+        uses: actions/cache@v4
+        with:
+          path: |
+            .tox
+            ~/.cache/pip
+          key: v7-build-tox-cache-${{ matrix.package }}-${{ hashFiles('tox.ini', 'gen-requirements.txt', 'dev-requirements.txt') }}
+      - name: run tox
+        run: tox -e lint-${{ matrix.package }}