[roll] Roll sdk-core CIPD packages:

fuchsia/sdk/core/linux-amd64 old:https://chrome-infra-packages.appspot.com/p/fuchsia/sdk/core/linux-amd64/+/version:0.20210105.0.1 new:https://chrome-infra-packages.appspot.com/p/fuchsia/sdk/core/linux-amd64/+/version:0.20210105.2.1
fuchsia/sdk/core/mac-amd64 old:https://chrome-infra-packages.appspot.com/p/fuchsia/sdk/core/mac-amd64/+/version:0.20210105.0.1 new:https://chrome-infra-packages.appspot.com/p/fuchsia/sdk/core/mac-amd64/+/version:0.20210105.2.1

From: version:0.20210105.0.1
To: version:0.20210105.2.1
GitOrigin-RevId: 6549092d45dba56dcd38a9b4d46e4e682b619a2a
Change-Id: I4351c52d1d08992a3c23a8968ec2ec8539cbd25d
diff --git a/jiri.lock b/jiri.lock
index 2ca1954..ddfaec4 100644
--- a/jiri.lock
+++ b/jiri.lock
@@ -248,13 +248,13 @@
     },
     {
         "package": "fuchsia/sdk/core/linux-amd64",
-        "version": "version:0.20210105.0.1",
-        "instance_id": "fUnavnVFtjHYNnEvzmizoO7XapPNPtZ_NoBYqC-bPe8C"
+        "version": "version:0.20210105.2.1",
+        "instance_id": "597LHqqTyYDpB27ehGXuAamYbclLwJ6nhQMUiojWnnUC"
     },
     {
         "package": "fuchsia/sdk/core/mac-amd64",
-        "version": "version:0.20210105.0.1",
-        "instance_id": "AqAeIeknzYxrX2H5aKNluxFhOi5rEJWxqlkS9dCXpSUC"
+        "version": "version:0.20210105.2.1",
+        "instance_id": "zMCnd-3cPgVQGT3xnWo8d7xAY5XVJQQD2x9nSoPcOssC"
     },
     {
         "package": "fuchsia/test_data/debug/sample_core",
diff --git a/prebuilts b/prebuilts
index 32c4dbb..1a455fd 100644
--- a/prebuilts
+++ b/prebuilts
@@ -528,7 +528,7 @@
 
     <!-- Packages for SDK -->
     <package name="fuchsia/sdk/core/${platform}"
-             version="version:0.20210105.0.1"
+             version="version:0.20210105.2.1"
              platforms="linux-amd64,mac-amd64"
              path="prebuilt/sdk/core/{{.OS}}-{{.Arch}}"
              attributes="sdk"/>