Relax aiobotocore versions to < 3.0.0 (#829)

This relaxes the accepted aiobotocore versions
to < 3.0.0 and provides a testing matrix against
all recent knowmn versions, that can be extended
at will.

* Add python 3.12 to CI

.github/workflows/ci.yml

@@ -4,12 +4,13 @@ on: [push, pull_request]
 
 jobs:
   test:
-    name: Python ${{ matrix.python-version }}
+    name: Python ${{ matrix.python-version }} - AioBotocore ${{ matrix.aiobotocore-version }}
     runs-on: ubuntu-latest
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.8", "3.9", "3.10", "3.11"]
+        python-version: ["3.8", "3.9", "3.10", "3.11", "3.12"]
+        aiobotocore-version: [">=2.5.4,<2.6.0", ">=2.7.0,<2.8.0", ">=2.8.0,<2.9.0", "<3.0.0"]
 
     env:
       BOTO_CONFIG: /dev/null
@@ -33,7 +34,9 @@ jobs:
         shell: bash -l {0}
         run: |
           pip install git+https://github.com/fsspec/filesystem_spec
+          pip install --upgrade "aiobotocore${{ matrix.aiobotocore-version }}" boto3  # boto3 to ensure compatibility
           pip install . --no-deps
+          pip show aiobotocore boto3 botocore
 
       - name: Run Tests
         shell: bash -l {0}

requirements.txt

@@ -1,3 +1,3 @@
-aiobotocore~=2.7.0
+aiobotocore>=2.5.4,<3.0.0
 fsspec==2023.10.0
 aiohttp!=4.0.0a0, !=4.0.0a1