Release 3.1.68 (#1453)

With emscripten-releases revisions:

https://chromium.googlesource.com/emscripten-releases/+/b52d8c9150dc7d4c8e4a7a08c7a9b4006c9abe49
(LTO)

https://chromium.googlesource.com/emscripten-releases/+/1565c9e5a4547215a1b63013607bf7a1cbb3d9d3
(asserts)

Co-authored-by: emscripten-bot <179889221+emscripten-bot@users.noreply.github.com>

bazel/revisions.bzl

diff --git a/bazel/revisions.bzl b/bazel/revisions.bzl
index 296a46e..67578a3 100644
--- a/bazel/revisions.bzl
+++ b/bazel/revisions.bzl
@@ -2,6 +2,13 @@
 # DO NOT MODIFY
 
 EMSCRIPTEN_TAGS = {
+    "3.1.68": struct(
+        hash = "b52d8c9150dc7d4c8e4a7a08c7a9b4006c9abe49",
+        sha_linux = "1f2bcb47d85eb31d90fa797b3513221adc50f0656bb37f0962a40fd0f49fcf6a",
+        sha_mac = "b180711544d783121370d2c894703f99d370a864ab147730f82fd59b88fa3481",
+        sha_mac_arm64 = "5e9b6242b56edc8cb404cbaf6c8bd7eb1f0f168b55b580bd92652f98c5d286f4",
+        sha_win = "824d37e8a0845f44e4c1111e8365640eea28944f1bdbd1e9e3fea0279b68baea",
+    ),
     "3.1.67": struct(
         hash = "4ae62984ea36ef0e5bfcbd0ed9b62f04bee6426a",
         sha_linux = "535b64822916c80124363a5c7a5bd0cafd703f166d5155c0ad0e464e4a879091",

emscripten-releases-tags.json

diff --git a/emscripten-releases-tags.json b/emscripten-releases-tags.json
index 500c826..1d6aeac 100644
--- a/emscripten-releases-tags.json
+++ b/emscripten-releases-tags.json
@@ -1,6 +1,6 @@
 {
   "aliases": {
-    "latest": "3.1.67",
+    "latest": "3.1.68",
     "latest-sdk": "latest",
     "latest-arm64-linux": "latest",
     "latest-64bit": "latest",
@@ -10,6 +10,8 @@
     "latest-releases-upstream": "latest"
   },
   "releases": {
+    "3.1.68": "b52d8c9150dc7d4c8e4a7a08c7a9b4006c9abe49",
+    "3.1.68-asserts": "1565c9e5a4547215a1b63013607bf7a1cbb3d9d3",
     "3.1.67": "4ae62984ea36ef0e5bfcbd0ed9b62f04bee6426a",
     "3.1.67-asserts": "7cfc00962efe07f2e2ff3383f59519dc5bea4f82",
     "3.1.66": "243eae09cf5c20c4fde51a620b92f483255c8214",