Summary: Bump memory to 1.5G for bazel to prevent OOM issues.

Test Plan: N/a

Reviewers: vihang, oazizi

Reviewed By: vihang
Signed-off-by: Zain Asgar <zasgar@pixielabs.ai>

Differential Revision: https://phab.corp.pixielabs.ai/D10382

GitOrigin-RevId: 82fb6a0e9d79e6955e2278391c957c68403f4257