Update to new Scala version for Chisel5

Change-Id: Ia4ad6c01e08ccb0a8f3ace5e7a29482968197017
diff --git a/WORKSPACE b/WORKSPACE
index cb11705..e805e27 100644
--- a/WORKSPACE
+++ b/WORKSPACE
@@ -130,7 +130,7 @@
 
 # Scala setup
 load("@io_bazel_rules_scala//:scala_config.bzl", "scala_config")
-scala_config(scala_version = "2.13.6")
+scala_config(scala_version = "2.13.11")
 load("@io_bazel_rules_scala//scala:scala.bzl", "rules_scala_setup", "rules_scala_toolchain_deps_repositories")
 rules_scala_setup()
 rules_scala_toolchain_deps_repositories(fetch_sources = True)
diff --git a/util/prep-bazel-airgapped-build.sh b/util/prep-bazel-airgapped-build.sh
index fb8fb08..75a470f 100755
--- a/util/prep-bazel-airgapped-build.sh
+++ b/util/prep-bazel-airgapped-build.sh
@@ -46,7 +46,7 @@
 
 : "${BAZEL_VERSION:=$(cat ${REPO_TOP}/.bazelversion)}"
 
-: "${BAZEL_AIRGAPPED_DIR:=bazel-airgapped_otf243e680}"
+: "${BAZEL_AIRGAPPED_DIR:=bazel-airgapped_ot9d059106}"
 : "${BAZEL_DISTDIR:=bazel-distdir}"
 : "${BAZEL_CACHEDIR:=bazel-cache}"
 : "${BAZEL_PYTHON_WHEEL_REPO:=ot_python_wheels}"