Uprev CrOS ver of ToT-1 and ToT-2 for lacros-on-skylab tests

Bug=chromium:1177035
Test=e2e test

Change-Id: I168dcac9d99d29f95afa5abf0f4dd2dd4b0ebdfb
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2844719
Reviewed-by: Yuke Liao <liaoyuke@chromium.org>
Commit-Queue: Xinan Lin <linxinan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#874896}
GitOrigin-RevId: 40e78edd6a4db750a884bb431ba6a3133a3facc1
diff --git a/buildbot/internal.chromeos.fyi.json b/buildbot/internal.chromeos.fyi.json
index bf1b7b2..4057b12 100644
--- a/buildbot/internal.chromeos.fyi.json
+++ b/buildbot/internal.chromeos.fyi.json
@@ -1294,7 +1294,7 @@
       {
         "args": [],
         "cros_board": "octopus",
-        "cros_img": "octopus-release/R91-13873.0.0",
+        "cros_img": "octopus-release/R91-13904.9.0",
         "name": "mainline_lacros_tast_tests_OCTOPUS_TOT-1",
         "swarming": {},
         "tast_expr": "(\"group:mainline\" && \"dep:lacros\")",
@@ -1304,7 +1304,7 @@
       {
         "args": [],
         "cros_board": "octopus",
-        "cros_img": "octopus-release/R90-13816.40.0",
+        "cros_img": "octopus-release/R90-13816.56.0",
         "name": "mainline_lacros_tast_tests_OCTOPUS_TOT-2",
         "swarming": {},
         "tast_expr": "(\"group:mainline\" && \"dep:lacros\")",
diff --git a/buildbot/variants.pyl b/buildbot/variants.pyl
index 01c16fd..837a87b 100644
--- a/buildbot/variants.pyl
+++ b/buildbot/variants.pyl
@@ -579,14 +579,14 @@
   'CROS_OCTOPUS_TOT-1': {
     'skylab': {
       'cros_board': 'octopus',
-      'cros_img': 'octopus-release/R91-13873.0.0',
+      'cros_img': 'octopus-release/R91-13904.9.0',
     },
     'identifier': 'OCTOPUS_TOT-1',
   },
   'CROS_OCTOPUS_TOT-2': {
     'skylab': {
       'cros_board': 'octopus',
-      'cros_img': 'octopus-release/R90-13816.40.0',
+      'cros_img': 'octopus-release/R90-13816.56.0',
     },
     'identifier': 'OCTOPUS_TOT-2',
   },