github: Update oldest supported Python version

Author: bkeryan

.github/ISSUE_TEMPLATE/bug_report.md

@@ -46,4 +46,4 @@ Search open/closed issues before submitting. Someone may have reported the same
 * OS & Device: [e.g. macOS, Windows, Linux] on [Mac, PC]
 * `ni-measurement-plugin-sdk-service` version [e.g. 2.0.0]
 * InstrumentStudio version [e.g. 24.8.0d123]
-* Python version [e.g. 3.9]
+* Python version [e.g. 3.10]

.github/workflows/check_nimg.yml

@@ -8,11 +8,11 @@ jobs:
   check_nimg:
     name: Check NIMG
     env:
-      oldest-python-version: '3.9'
+      oldest-python-version: '3.10'
     strategy:
       matrix:
         os: [windows-latest, ubuntu-latest, macos-latest]
-        python-version: [3.9, 3.14]
+        python-version: [3.10, 3.14]
     runs-on: ${{ matrix.os }}
     defaults:
       run:

.github/workflows/check_nims.yml

@@ -8,11 +8,11 @@ jobs:
   check_nims:
     name: Check NIMS
     env:
-      oldest-python-version: '3.9'
+      oldest-python-version: '3.10'
     strategy:
       matrix:
         os: [windows-latest, ubuntu-latest, macos-latest]
-        python-version: [3.9, 3.14]
+        python-version: [3.10, 3.14]
     runs-on: ${{ matrix.os }}
     defaults:
       run:

.github/workflows/run_unit_tests.yml

@@ -12,7 +12,7 @@ jobs:
       matrix:
         os: [windows-latest, ubuntu-latest]
         # grpcio does not have binary wheels for pypy or free-threading, as of version 1.75.1.
-        python-version: [3.9, '3.10', 3.11, 3.12, 3.13, 3.14]
+        python-version: ['3.10', 3.11, 3.12, 3.13, 3.14]
       # Fail-fast skews the pass/fail ratio and seems to make pytest produce
       # incomplete JUnit XML results.
       fail-fast: false