pw_env_setup: Update Bazel to 7.0.0 pre-release

Updates Bazel to 7.0.0-pre.20231011.2.6.

Fixes: b/299671945
Change-Id: I05fc4feda6d1989d208f37072b6ea95011717418
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/178950
Pigweed-Auto-Submit: Armando Montanez <amontanez@google.com>
Commit-Queue: Auto-Submit <auto-submit@pigweed-service-accounts.iam.gserviceaccount.com>
Reviewed-by: Ted Pudlik <tpudlik@google.com>
diff --git a/WORKSPACE b/WORKSPACE
index 195338d..2c0f1ac 100644
--- a/WORKSPACE
+++ b/WORKSPACE
@@ -30,10 +30,10 @@
 # Used in modules: //pw_build, (Assorted modules via select statements).
 http_archive(
     name = "platforms",
-    sha256 = "5308fc1d8865406a49427ba24a9ab53087f17f5266a7aabbfc28823f3916e1ca",
+    sha256 = "8150406605389ececb6da07cbcb509d5637a3ab9a24bc69b1101531367d89d74",
     urls = [
-        "https://mirror.bazel.build/github.com/bazelbuild/platforms/releases/download/0.0.6/platforms-0.0.6.tar.gz",
-        "https://github.com/bazelbuild/platforms/releases/download/0.0.6/platforms-0.0.6.tar.gz",
+        "https://mirror.bazel.build/github.com/bazelbuild/platforms/releases/download/0.0.8/platforms-0.0.8.tar.gz",
+        "https://github.com/bazelbuild/platforms/releases/download/0.0.8/platforms-0.0.8.tar.gz",
     ],
 )
 
@@ -206,7 +206,7 @@
 # Used in modules: pw_protobuf.
 git_repository(
     name = "com_github_nanopb_nanopb",
-    commit = "ee27d70d329e1718f39eea1f425178e747263173",
+    commit = "444aca1c4b1d782ee62168232d7b466a837c609e",
     remote = "https://github.com/nanopb/nanopb.git",
     shallow_since = "1641373017 +0800",
 )
diff --git a/pw_env_setup/py/pw_env_setup/cipd_setup/bazel.json b/pw_env_setup/py/pw_env_setup/cipd_setup/bazel.json
index 4392048..8b8bd5c 100644
--- a/pw_env_setup/py/pw_env_setup/cipd_setup/bazel.json
+++ b/pw_env_setup/py/pw_env_setup/cipd_setup/bazel.json
@@ -4,14 +4,15 @@
   ],
   "packages": [
     {
-      "path": "fuchsia/third_party/bazel/${platform}",
+      "path": "fuchsia/third_party/bazel-prerelease/${platform}",
       "platforms": [
         "linux-amd64",
         "mac-amd64",
+        "mac-arm64",
         "windows-amd64"
       ],
       "tags": [
-        "version:2@6.4.0.6"
+        "version:2@7.0.0-pre.20231011.2.6"
       ],
       "version_file": ".versions/bazel.cipd_version"
     },