back to 3.9 and remove pycocotools dependance

.github/workflows/ci.yml

@@ -15,7 +15,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-22.04, windows-latest]
-        python-version: [3.8]
+        python-version: [3.9]
     steps:
     - name: Checkout repository
       uses: actions/checkout@v3

pyproject.toml

@@ -47,8 +47,6 @@ dependencies = [
     "spacytextblob",
     "textblob",
     "torch",
-    "pycocotools; platform_system!='Windows'",
-    "pycocotools-windows; platform_system=='Windows'",
     "salesforce-lavis @ git+https://github.com/salesforce/LAVIS.git@main"
 ]