[roll] Roll fuchsia [ebpf] Explicitly specify type with EbpfHelperImpl

An upcoming Rust toolchain change
rust-lang/rust#148602 can no longer infer
these functions implement the method of an associated type.

Original-Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/1444593
Original-Revision: e3f5772a6b3646fcedea5be62b32e98f3353684a
GitOrigin-RevId: a30e3bfdc4cf522ee230c93700fed8ac329622dc
Change-Id: Ia4a146d6864ec6e164f88ae63a0ccc15406b4857

Author: Erick Tryzelaar

stem

@@ -7,7 +7,7 @@
             manifest="manifests/platform"
             root=""
             remote="https://fuchsia.googlesource.com/fuchsia"
-            revision="ab0a962d0072894f015bae2a9a1bf02d4206db30"/>
+            revision="e3f5772a6b3646fcedea5be62b32e98f3353684a"/>
   </imports>
   <projects>
     <project name="cobalt"