oss-fuzz: bump elfutils

to make it less likely for the libbpf fuzz target to run into
elfutils bugs that have been fixed upstream since two new fuzz
targets were added there back in April.

Signed-off-by: Evgeny Vereshchagin <evvers@ya.ru>

scripts/build-fuzzers.sh

@@ -44,7 +44,7 @@ rm -rf elfutils
 git clone git://sourceware.org/git/elfutils.git
 (
 cd elfutils
-git checkout 83251d4091241acddbdcf16f814e3bc6ef3df49a
+git checkout e9f3045caa5c4498f371383e5519151942d48b6d
 git log --oneline -1
 
 # ASan isn't compatible with -Wl,--no-undefined: https://github.com/google/sanitizers/issues/380