[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:2.20210223.2.1 new:https://chrome-infra-packages.appspot.com/p/fuchsia/sdk/core/linux-amd64/+/version:2.20210223.3.1
fuchsia/sdk/core/mac-amd64 old:https://chrome-infra-packages.appspot.com/p/fuchsia/sdk/core/mac-amd64/+/version:2.20210223.2.1 new:https://chrome-infra-packages.appspot.com/p/fuchsia/sdk/core/mac-amd64/+/version:2.20210223.3.1

From: version:2.20210223.2.1
To: version:2.20210223.3.1
GitOrigin-RevId: 451e60455d2be7ff71dda4090031632705bb1b5a
Change-Id: I95901988dfa3bf380310532e27cab4bbb00c234b
diff --git a/jiri.lock b/jiri.lock
index 4f82ef4..79a0660 100644
--- a/jiri.lock
+++ b/jiri.lock
@@ -258,13 +258,13 @@
     },
     {
         "package": "fuchsia/sdk/core/linux-amd64",
-        "version": "version:2.20210223.2.1",
-        "instance_id": "EW6MdweS0CGAPCP8A5pBDdR-E_gPoIgBmAeKvEA-TMYC"
+        "version": "version:2.20210223.3.1",
+        "instance_id": "WG2nRhSldqIKRqpfT2PE_BTgj64sDmjT65jcJlY0o1UC"
     },
     {
         "package": "fuchsia/sdk/core/mac-amd64",
-        "version": "version:2.20210223.2.1",
-        "instance_id": "Vq3sbDOLXmO_qCxT2cXZkaO1cG1LV3II-KOaTqwFnwQC"
+        "version": "version:2.20210223.3.1",
+        "instance_id": "wgD3bGqhtZTLVMxnpLqaRjShot0OfBFZpyrqNjdiWOMC"
     },
     {
         "package": "fuchsia/test_data/debug/sample_core",
diff --git a/prebuilts b/prebuilts
index 03564e7..94267cf 100644
--- a/prebuilts
+++ b/prebuilts
@@ -529,7 +529,7 @@
 
     <!-- Packages for SDK -->
     <package name="fuchsia/sdk/core/${platform}"
-             version="version:2.20210223.2.1"
+             version="version:2.20210223.3.1"
              platforms="linux-amd64,mac-amd64"
              path="prebuilt/sdk/core/{{.OS}}-{{.Arch}}"
              attributes="sdk"/>