[roll] Roll gcc-prebuilt packages to git_revision:4f939ac1e295f38624c82fa75fa798e83d825232,cf78890fd449bedb7190d36ed1288187fb3e8bb2

fuchsia/third_party/gcc/linux-amd64 old:https://chrome-infra-packages.appspot.com/p/fuchsia/third_party/gcc/linux-amd64/+/git_revision:5f587c81bc558942d2988f5e2965a72471f5c202,552f1157c6262e274295e9c8a131de13fa7b00a3 new:https://chrome-infra-packages.appspot.com/p/fuchsia/third_party/gcc/linux-amd64/+/git_revision:4f939ac1e295f38624c82fa75fa798e83d825232,cf78890fd449bedb7190d36ed1288187fb3e8bb2
fuchsia/third_party/gcc/linux-arm64 old:https://chrome-infra-packages.appspot.com/p/fuchsia/third_party/gcc/linux-arm64/+/git_revision:5f587c81bc558942d2988f5e2965a72471f5c202,552f1157c6262e274295e9c8a131de13fa7b00a3 new:https://chrome-infra-packages.appspot.com/p/fuchsia/third_party/gcc/linux-arm64/+/git_revision:4f939ac1e295f38624c82fa75fa798e83d825232,cf78890fd449bedb7190d36ed1288187fb3e8bb2
fuchsia/third_party/gcc/mac-amd64 old:https://chrome-infra-packages.appspot.com/p/fuchsia/third_party/gcc/mac-amd64/+/git_revision:5f587c81bc558942d2988f5e2965a72471f5c202,552f1157c6262e274295e9c8a131de13fa7b00a3 new:https://chrome-infra-packages.appspot.com/p/fuchsia/third_party/gcc/mac-amd64/+/git_revision:4f939ac1e295f38624c82fa75fa798e83d825232,cf78890fd449bedb7190d36ed1288187fb3e8bb2

From: git_revision:5f587c81bc558942d2988f5e2965a72471f5c202,552f1157c6262e274295e9c8a131de13fa7b00a3
To: git_revision:4f939ac1e295f38624c82fa75fa798e83d825232,cf78890fd449bedb7190d36ed1288187fb3e8bb2
GitOrigin-RevId: 9dbc474d0bc0dd41bc992803675661e9af358316
Change-Id: I771c8f659fabab7646b6328d488c2d0aee77f4d6
diff --git a/jiri.lock b/jiri.lock
index ab56a1e..0e84dc2 100644
--- a/jiri.lock
+++ b/jiri.lock
@@ -454,18 +454,18 @@
     },
     {
         "package": "fuchsia/third_party/gcc/linux-amd64",
-        "version": "git_revision:5f587c81bc558942d2988f5e2965a72471f5c202,552f1157c6262e274295e9c8a131de13fa7b00a3",
-        "instance_id": "RIVG4K9SA0iyc4xs5UnZSp5BszU3_aEXNzqhU3ophhgC"
+        "version": "git_revision:4f939ac1e295f38624c82fa75fa798e83d825232,cf78890fd449bedb7190d36ed1288187fb3e8bb2",
+        "instance_id": "msprgAg9Yf7baEEMgIiou6CHlhrKzR_CsYfmC48kKfYC"
     },
     {
         "package": "fuchsia/third_party/gcc/linux-arm64",
-        "version": "git_revision:5f587c81bc558942d2988f5e2965a72471f5c202,552f1157c6262e274295e9c8a131de13fa7b00a3",
-        "instance_id": "g-gkejMCcyBFRlWVzRgG9G8HWwFK8yWC3tRzlPwXtMIC"
+        "version": "git_revision:4f939ac1e295f38624c82fa75fa798e83d825232,cf78890fd449bedb7190d36ed1288187fb3e8bb2",
+        "instance_id": "mY2arnPbG097N95PNjBuZkSiuYDqfC2h0lex_7My1WIC"
     },
     {
         "package": "fuchsia/third_party/gcc/mac-amd64",
-        "version": "git_revision:5f587c81bc558942d2988f5e2965a72471f5c202,552f1157c6262e274295e9c8a131de13fa7b00a3",
-        "instance_id": "CKq0tZGd3r4YOCINJFkTSlMhVvrBd3MVzRPkQIh5ZWMC"
+        "version": "git_revision:4f939ac1e295f38624c82fa75fa798e83d825232,cf78890fd449bedb7190d36ed1288187fb3e8bb2",
+        "instance_id": "fS7XthT9EXzSrCi7_G26TBkXvdnMZQVcupfPtH8v7G4C"
     },
     {
         "package": "fuchsia/third_party/goma/client/linux-amd64",
diff --git a/toolchain b/toolchain
index 6031dd9..ac01ea5 100644
--- a/toolchain
+++ b/toolchain
@@ -32,7 +32,7 @@
          TODO(mcgrathr): repo/bot link about provenance
     -->
     <package name="fuchsia/third_party/gcc/${platform}"
-             version="git_revision:5f587c81bc558942d2988f5e2965a72471f5c202,552f1157c6262e274295e9c8a131de13fa7b00a3"
+             version="git_revision:4f939ac1e295f38624c82fa75fa798e83d825232,cf78890fd449bedb7190d36ed1288187fb3e8bb2"
              platforms="linux-amd64,linux-arm64,mac-amd64"
              path="prebuilt/third_party/gcc/{{.OS}}-{{.Arch}}"/>