Update shallow_since for bpftrace

Summary: Bazel reported that this could be updated

Test Plan: Exsiting

Reviewers: oazizi, zasgar, #third_party_approvers

Reviewed By: oazizi, zasgar, #third_party_approvers
Signed-off-by: Vihang Mehta <vihang@pixielabs.ai>

Differential Revision: https://phab.corp.pixielabs.ai/D9876

GitOrigin-RevId: 363e9db29396ff893bf670d9c4aa3e0aec28eb37

bazel/repository_locations.bzl

@@ -300,6 +300,6 @@ GIT_REPOSITORY_LOCATIONS = dict(
     com_github_iovisor_bpftrace = dict(
         remote = "https://github.com/pixie-io/bpftrace.git",
         commit = "b63b4902f7865f2d7a995e0732333b8439fc78ab",
-        shallow_since = "1601316353 -0700",
+        shallow_since = "1632863490 -0700",
     ),
 )