[roll] Roll sdk-core packages to version:5.20210621.2.1

fuchsia/sdk/core/linux-amd64 old:https://chrome-infra-packages.appspot.com/p/fuchsia/sdk/core/linux-amd64/+/version:5.20210621.1.1 new:https://chrome-infra-packages.appspot.com/p/fuchsia/sdk/core/linux-amd64/+/version:5.20210621.2.1
fuchsia/sdk/core/mac-amd64 old:https://chrome-infra-packages.appspot.com/p/fuchsia/sdk/core/mac-amd64/+/version:5.20210621.1.1 new:https://chrome-infra-packages.appspot.com/p/fuchsia/sdk/core/mac-amd64/+/version:5.20210621.2.1

From: version:5.20210621.1.1
To: version:5.20210621.2.1
GitOrigin-RevId: 6f95e15611b0589a00e05f1474b825b8ae51d955
Change-Id: Ieaca9649dbae97c2dbbf628108d0aa778edc14d0
diff --git a/jiri.lock b/jiri.lock
index f8552ba..069c0e6 100644
--- a/jiri.lock
+++ b/jiri.lock
@@ -258,13 +258,13 @@
     },
     {
         "package": "fuchsia/sdk/core/linux-amd64",
-        "version": "version:5.20210621.1.1",
-        "instance_id": "7jJedEFeuGk8kj8g22Kfkck09oP_9UPJUce2DnHUkWYC"
+        "version": "version:5.20210621.2.1",
+        "instance_id": "NQqmwHDH8lQc6UT2-suN9YWdAyo3-1a8LFdegTv0Yk0C"
     },
     {
         "package": "fuchsia/sdk/core/mac-amd64",
-        "version": "version:5.20210621.1.1",
-        "instance_id": "nTXx5UMQ-78onqH814Lop64dldIQ7if-aIJZSYT9kDEC"
+        "version": "version:5.20210621.2.1",
+        "instance_id": "Ga7RIPavtHo8fL7IX5t9lCAbrxHtZTbiPtqhiAeExUgC"
     },
     {
         "package": "fuchsia/starnix/android-root-amd64",
diff --git a/prebuilts b/prebuilts
index 1bdf281..2e4604a 100644
--- a/prebuilts
+++ b/prebuilts
@@ -553,7 +553,7 @@
 
     <!-- Packages for SDK -->
     <package name="fuchsia/sdk/core/${platform}"
-             version="version:5.20210621.1.1"
+             version="version:5.20210621.2.1"
              platforms="linux-amd64,mac-amd64"
              path="prebuilt/sdk/core/{{.OS}}-{{.Arch}}"
              attributes="sdk"/>