Run `rules_java` bzlmod CI tasks with the latest Bazel release

Now that Bazel 7 is released, we no longer need to run against Bazel@HEAD

PiperOrigin-RevId: 594425336
Change-Id: I22aa3e513d988362aba3acda5af26d29405f38fc

.bazelci/presubmit.yml

diff --git a/.bazelci/presubmit.yml b/.bazelci/presubmit.yml
index 6153bf5..e11ebe7 100644
--- a/.bazelci/presubmit.yml
+++ b/.bazelci/presubmit.yml
@@ -35,19 +35,16 @@
     platform: windows
     build_targets: *build_targets
   ubuntu2004_bzlmod:
-    bazel: last_green
     platform: ubuntu2004
     build_flags:
       - "--config=bzlmod"
     build_targets: *build_targets_bzlmod
   macos_bzlmod:
-    bazel: last_green
     platform: macos
     build_flags:
       - "--config=bzlmod"
     build_targets: *build_targets_bzlmod
   windows_bzlmod:
-    bazel: last_green
     platform: windows
     build_flags:
       - "--config=bzlmod"