Add config with bazelversions
diff --git a/.bazelci/presubmit.yml b/.bazelci/presubmit.yml
index de422ec..c7000c0 100644
--- a/.bazelci/presubmit.yml
+++ b/.bazelci/presubmit.yml
@@ -1,53 +1,17 @@
 ---
 platforms:
   ubuntu1404:
-    run_targets:
+    shell_commands:
+    - echo 0.21.0 > .bazelversion
     build_targets:
-    - "..."
-    test_flags:
-    - "--test_timeout=300"
-    test_targets:
-    - "..."
+    - "//..."
   ubuntu1604:
-    run_targets:
+    shell_commands:
+    - echo 0.20.0 > .bazelversion
     build_targets:
-    - "..."
-    test_flags:
-    - "--test_timeout=300"
-    test_targets:
-    - "..."
+    - "//..."
   ubuntu1804:
-    run_targets:
+    shell_commands:
+    - echo 0.19.2 > .bazelversion
     build_targets:
-    - "..."
-    test_flags:
-    - "--test_timeout=300"
-    test_targets:
-    - "..."
-  ubuntu1804_nojava:
-    run_targets:
-    build_flags:
-    - "--javabase=@openjdk_linux_archive//:runtime"
-    build_targets:
-    - "..."
-    test_flags:
-    - "--test_timeout=300"
-    - "--javabase=@openjdk_linux_archive//:runtime"
-    test_targets:
-    - "..."
-  macos:
-    run_targets:
-    build_targets:
-    - "..."
-    test_flags:
-    - "--test_timeout=300"
-    test_targets:
-    - "..."
-  windows:
-    run_targets:
-    build_targets:
-    - "..."
-    test_flags:
-    - "--test_timeout=300"
-    test_targets:
-    - "..."
+    - "//..."