Test with Bazel 8 (#23)

diff --git a/.bazelci/presubmit.yml b/.bazelci/presubmit.yml
index ab97269..3e84318 100644
--- a/.bazelci/presubmit.yml
+++ b/.bazelci/presubmit.yml
@@ -7,8 +7,9 @@
     - macos
     - windows
   bazel:
-    - 6.5.0
-    - 7.4.0
+    - 6.x
+    - 7.x
+    - 8.x
 
 tasks:
   test_module_bzlmod:
diff --git a/.bazelversion b/.bazelversion
index ba7f754..2b0aa21 100644
--- a/.bazelversion
+++ b/.bazelversion
@@ -1 +1 @@
-7.4.0
+8.2.1
diff --git a/.bcr/presubmit.yml b/.bcr/presubmit.yml
index fd5f3ba..aec7695 100644
--- a/.bcr/presubmit.yml
+++ b/.bcr/presubmit.yml
@@ -7,7 +7,7 @@
       - ubuntu2004
       - macos
       - windows
-    bazel: [6.x, 7.x]
+    bazel: [6.x, 7.x, 8.x]
   tasks:
     run_test_module:
       name: Run test module