[skylab_tests] Update skylab tests cros img version

This CL will update cros image version for skylab tests. CROS_BOARD_LKGM
is updated according to chromeos/CHROMEOS_LKGM; CROS_BOARD_DEV,
CROS_BOARD_BETA and CROS_BOARD_STABLE are updated according to Omaha.

If this CL caused regressions, please revert and pause the autoroller at
https://luci-scheduler.appspot.com/jobs/chrome/lacros-skylab-tests-cros-img-roller
Also please file a bug to OS>LaCrOS>Partner, and CC svenzheng@chromium.org,
liaoyuke@chromium.org, yjt@google.com.


R=rubber-stamper@appspot.gserviceaccount.com

Requires-Testing: True
Change-Id: Ic10ee6836120db93eade5355e8009e3e703880a5
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3586025
Auto-Submit: skylab-test-cros-roller@chops-service-accounts.iam.gserviceaccount.com <skylab-test-cros-roller@chops-service-accounts.iam.gserviceaccount.com>
Commit-Queue: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Cr-Commit-Position: refs/branch-heads/4951@{#742}
Cr-Branched-From: 27de622-refs/heads/main@{#982481}

testing/buildbot/variants.pyl

@@ -884,8 +884,8 @@
   'CROS_ATLAS_RELEASE_DEV': {
     'skylab': {
       'cros_board': 'atlas',
-      'cros_chrome_version': '102.0.4975.0',
-      'cros_img': 'atlas-release/R102-14658.0.0',
+      'cros_chrome_version': '102.0.4992.0',
+      'cros_img': 'atlas-release/R102-14682.0.0',
     },
     'enabled': False,
     'identifier': 'ATLAS_RELEASE_DEV',
@@ -920,8 +920,8 @@
   'CROS_EVE_RELEASE_DEV': {
     'skylab': {
       'cros_board': 'eve',
-      'cros_chrome_version': '102.0.4977.0',
-      'cros_img': 'eve-release/R102-14667.0.0',
+      'cros_chrome_version': '102.0.4992.0',
+      'cros_img': 'eve-release/R102-14682.0.0',
     },
     'enabled': False,
     'identifier': 'EVE_RELEASE_DEV',