Update resource leak test scaling factors and CI Python resolution (boto#3705)

* Lower standard-build memory growth threshold in resource leak tests

* Always resolve to latest patch in setup-python

* Bump no-gil threshold to 17 after multiple failures

Author: jonathan343

.github/workflows/run-crt-test.yml

@@ -34,6 +34,7 @@ jobs:
           python-version: '${{ matrix.python-version }}'
           cache: 'pip'
           allow-prereleases: true
+          check-latest: true
       - name: Install dependencies and CRT
         run: |
           python scripts/ci/install --extras crt

.github/workflows/run-tests.yml

@@ -34,6 +34,7 @@ jobs:
           python-version: '${{ matrix.python-version }}'
           cache: 'pip'
           allow-prereleases: true
+          check-latest: true
       - name: Install dependencies
         run: |
           python scripts/ci/install

tests/functional/leak/test_resource_leaks.py

@@ -29,9 +29,9 @@ class TestDoesNotLeakMemory(BaseClientDriverTest):
     if sysconfig.get_config_var("Py_GIL_DISABLED") == 1:
         # Free-threaded Python objects require additional
         # memory for per-object locks and synchronization.
-        SCALING_FACTOR = 16
+        SCALING_FACTOR = 17
     else:
-        SCALING_FACTOR = 13
+        SCALING_FACTOR = 4
     MAX_GROWTH_BYTES = SCALING_FACTOR * 1024 * 1024
 
     def test_create_single_client_memory_constant(self):