fix(builtin): allow bazel version to have semver build metadata (#2624)

internal/common/check_version.bzl

diff --git a/internal/common/check_version.bzl b/internal/common/check_version.bzl
index dc36e5a..fe8eab2 100644
--- a/internal/common/check_version.bzl
+++ b/internal/common/check_version.bzl
@@ -33,6 +33,9 @@
     # Remove commit from version.
     version = version_string.split(" ", 1)[0]
 
+    # Remove semver "build metadata" tag
+    version = version.split("+", 1)[0]
+
     # Split into (release, date) parts and only return the release
     # as a tuple of integers.
     parts = version.split("-", 1)

internal/common/check_version_test.bzl

diff --git a/internal/common/check_version_test.bzl b/internal/common/check_version_test.bzl
index b85ac93..da986af 100644
--- a/internal/common/check_version_test.bzl
+++ b/internal/common/check_version_test.bzl
@@ -8,6 +8,7 @@
     asserts.equals(env, False, check_version("1.2.2", "1.2.3"))
     asserts.equals(env, True, check_version("1.12.3", "1.2.1"))
     asserts.equals(env, True, check_version("0.8.0rc2", "0.8.0"))
+    asserts.equals(env, True, check_version("0.8.0+custombuild", "0.8.0"))
     asserts.equals(env, True, check_version_range("1.2.2", "1.2.1", "1.2.3"))
     asserts.equals(env, False, check_version_range("1.2.0", "1.2.1", "1.2.3"))
     asserts.equals(env, False, check_version_range("1.2.4", "1.2.1", "1.2.3"))