ci: revert to older windows runner image

flowey/flowey_hvlite/src/pipelines/checkin_gates.rs

@@ -1470,7 +1470,8 @@ impl IntoPipeline for CheckinGatesCli {
                 label: "x64-windows-amd",
                 target: CommonTriple::X86_64_WINDOWS_MSVC,
                 resolve_vmm_tests_artifacts: vmm_tests_artifacts_windows_amd_x86,
-                nextest_filter_expr: standard_filter.clone(),
+                // TODO: remove servicing exclusion once we return to using updated runners
+                nextest_filter_expr: format!("{standard_filter} & !test(servicing)"),
                 test_artifacts: standard_x64_test_artifacts.clone(),
                 needs_prep_run: false,
                 hugetlb_2mb_overcommit_pages: None,

flowey/flowey_hvlite/src/pipelines_shared/gh_pools.rs

@@ -9,7 +9,9 @@ pub const AMD_POOL_1ES: &str = "openvmm-gh-amd-westus3";
 pub const INTEL_POOL_1ES: &str = "openvmm-gh-intel-westus3";
 pub const ARM_POOL_1ES: &str = "openvmm-gh-arm-westus2";
 
-pub const WINDOWS_IMAGE_AMD64: &str = "win-amd64";
+// temporarily revert to the older image to mitigate powershell issues.
+// TODO: return to using updated runner image
+pub const WINDOWS_IMAGE_AMD64: &str = "HvLite-CI-Win-Ge-Image-256GB";
 pub const WINDOWS_IMAGE_ARM64: &str = "win-arm64";
 pub const LINUX_IMAGE_AMD64: &str = "ubuntu2404-amd64";
 pub const LINUX_IMAGE_ARM64: &str = "ubuntu2404-arm64";