Replace references to old versions of Bazel with 1.0

Change-Id: I2998e0b13ec3f9df4d7ec2a5bccdf46a66d9e065
diff --git a/tools/dev/p4vm/root-bootstrap.sh b/tools/dev/p4vm/root-bootstrap.sh
index 9b35809..e1b9449 100755
--- a/tools/dev/p4vm/root-bootstrap.sh
+++ b/tools/dev/p4vm/root-bootstrap.sh
@@ -4,7 +4,7 @@
 
 VM_TYPE=${1:-dev}
 
-BAZEL_VER="0.27.0"
+BAZEL_VER="1.0.0"
 CORRETTO_URL="https://d3pxv6yz143wms.cloudfront.net/8.212.04.2/java-1.8.0-amazon-corretto-jdk_8.212.04-2_amd64.deb"
 
 # Disable automatic updates