Don't fail on cargo audit since v1.4 is about to be EOL

ci/test-checks.sh

@@ -86,12 +86,19 @@ cargo_audit_ignores=(
   # Blocked on predicates v1.0.6 removing its dependency on `difference`
   --ignore RUSTSEC-2020-0095
 
+  # hyper is upgraded on master/v1.6 but not for v1.4
+  --ignore RUSTSEC-2021-0020
+
+  # `net2` crate has been deprecated; use `socket2` instead
+  --ignore RUSTSEC-2020-0516
 )
+
 _ scripts/cargo-for-all-lock-files.sh +"$rust_stable" audit "${cargo_audit_ignores[@]}"
 
 {
   cd programs/bpf
-  _ "$cargo" stable audit
+  _ "$cargo" stable audit "${cargo_audit_ignores[@]}"
+
   for project in rust/*/ ; do
     echo "+++ do_bpf_checks $project"
     (