[bazel] update .bazelversion to 8.0.0 (#119425)

Fixes:

ERROR: The project you're trying to build requires Bazel 7.3.0
(specified
    in llvm-project/utils/bazel/.bazelversion), but it wasn't found in
    /usr/bin.

    You can install the required Bazel version via apt:
      sudo apt update && sudo apt install bazel-7.3.0

If this doesn't work, check Bazel's installation instructions for help:
      https://bazel.build/install/ubuntu

Link: https://blog.bazel.build/2024/12/09/bazel-8-release.html

utils/bazel/.bazelrc

@@ -9,7 +9,7 @@
 
 # Flip off to disable MODULE.bazel until we're ready.
 # https://github.com/llvm/llvm-project/issues/55924
-common --enable_bzlmod=false
+common --enable_bzlmod=false --enable_workspace
 
 # Prevent invalid caching if input files are modified during a build.
 build --experimental_guard_against_concurrent_changes

utils/bazel/.bazelversion

@@ -1 +1 @@
-7.3.0
+8.0.0

utils/bazel/WORKSPACE

@@ -16,6 +16,13 @@ http_archive(
     ],
 )
 
+http_archive(
+    name = "rules_cc",
+    urls = ["https://github.com/bazelbuild/rules_cc/releases/download/0.0.17/rules_cc-0.0.17.tar.gz"],
+    sha256 = "abc605dd850f813bb37004b77db20106a19311a96b2da1c92b789da529d28fe1",
+    strip_prefix = "rules_cc-0.0.17",
+)
+
 new_local_repository(
     name = "llvm-raw",
     build_file_content = "# empty",
@@ -29,9 +36,9 @@ llvm_configure(name = "llvm-project")
 maybe(
     http_archive,
     name = "rules_python",
-    sha256 = "778aaeab3e6cfd56d681c89f5c10d7ad6bf8d2f1a72de9de55b23081b2d31618",
-    strip_prefix = "rules_python-0.34.0",
-    url = "https://github.com/bazelbuild/rules_python/releases/download/0.34.0/rules_python-0.34.0.tar.gz",
+    sha256 = "4f7e2aa1eb9aa722d96498f5ef514f426c1f55161c3c9ae628c857a7128ceb07",
+    strip_prefix = "rules_python-1.0.0",
+    url = "https://github.com/bazelbuild/rules_python/releases/download/1.0.0/rules_python-1.0.0.tar.gz",
 )
 
 maybe(