MNT: Drop Python 3.7 support

Author: effigies

.github/workflows/release.yml

@@ -29,7 +29,7 @@ jobs:
       - name: Set up Python
         uses: actions/setup-python@v4
         with:
-          python-version: 3.7
+          python-version: 3
 
       - name: Download auto
         run: |

.github/workflows/testpydra.yml

@@ -50,7 +50,7 @@ jobs:
     strategy:
       matrix:
         os: [macos-latest, ubuntu-latest, windows-latest]
-        python-version: ['3.7', '3.8', '3.9', '3.10', '3.11']
+        python-version: ['3.8', '3.9', '3.10', '3.11']
         install: ['wheel']
         include:
           - os: 'ubuntu-latest'

.github/workflows/testsingularity.yml

@@ -12,7 +12,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: [3.7, 3.8, 3.9, "3.10"]
+        python-version: [3.8, 3.9, "3.10", "3.11"]
       fail-fast: False
 
     steps:

pyproject.toml

@@ -6,7 +6,7 @@ build-backend = "flit_scm:buildapi"
 name = "pydra"
 description = "Pydra dataflow engine"
 readme = "README.rst"
-requires-python = ">=3.7"
+requires-python = ">=3.8"
 dependencies = [
     "attrs >=19.1.0",
     "cloudpickle >=2.0.0",