switch to 3.10 as min version

Author: eleanorjboyd

.github/workflows/pr-check.yml

@@ -132,7 +132,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest, windows-latest, macos-latest]
-        python-version: ['3.9', '3.12', '3.14']
+        python-version: ['3.10', '3.12', '3.14']
 
     steps:
       - name: Checkout
@@ -182,7 +182,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest, windows-latest, macos-latest]
-        python-version: ['3.9', '3.12', '3.14']
+        python-version: ['3.10', '3.12', '3.14']
 
     steps:
       - name: Checkout
@@ -232,7 +232,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest, windows-latest, macos-latest]
-        python-version: ['3.9', '3.12', '3.14']
+        python-version: ['3.10', '3.12', '3.14']
 
     steps:
       - name: Checkout

.github/workflows/push-check.yml

@@ -83,7 +83,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest, windows-latest, macos-latest]
-        python-version: ['3.9', '3.12', '3.14']
+        python-version: ['3.10', '3.12', '3.14']
 
     steps:
       - name: Checkout
@@ -133,7 +133,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest, windows-latest, macos-latest]
-        python-version: ['3.9', '3.12', '3.14']
+        python-version: ['3.10', '3.12', '3.14']
 
     steps:
       - name: Checkout
@@ -183,7 +183,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest, windows-latest, macos-latest]
-        python-version: ['3.9', '3.12', '3.14']
+        python-version: ['3.10', '3.12', '3.14']
 
     steps:
       - name: Checkout