Update ci.yml

Author: pdimov

.github/workflows/ci.yml

@@ -321,10 +321,6 @@ jobs:
             bopts: install
             os: ubuntu-latest
 
-          - lib: system
-            bopts: install
-            os: ubuntu-latest
-
           - lib: test
             bopts: install
             os: ubuntu-latest
@@ -495,12 +491,12 @@ jobs:
           - lib: python
             bopts: install
             copts: "-DUSE_PYTHON_VERSION=\"3.9;EXACT\""
-            os: windows-latest
+            os: windows-2022
 
           - lib: python
             bopts: python=3.9,3.14 install
             copts: "-DUSE_PYTHON_VERSION=\"3.9;EXACT\""
-            os: windows-latest
+            os: windows-2022
 
           - lib: serialization
             bopts: install