tf 2.15 requires py>=3.9

Author: FynnBe

.github/workflows/build.yaml

@@ -134,7 +134,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ['3.8', '3.12']
+        python-version: ['3.9', '3.12']
     steps:
     - uses: actions/checkout@v4
     - uses: mamba-org/setup-micromamba@v1