Bug 1458385: Update linux-upx to 3.9.5; r=glandium

This matches the version that exists in mozilla-build (see Bug 1501403).

Differential Revision: https://phabricator.services.mozilla.com/D26413

--HG--
extra : moz-landing-system : lando

taskcluster/scripts/misc/build-upx.sh

@@ -12,7 +12,8 @@ cd $WORKSPACE
 
 git clone -n https://github.com/upx/upx.git upx-clone
 cd upx-clone
-git checkout d31947e1f016e87f24f88b944439bbee892f0429 # Asserts integrity of the clone (right?)
+# https://github.com/upx/upx/releases/tag/v3.95
+git checkout 7a3637ff5a800b8bcbad20ae7f668d8c8449b014 # Asserts integrity of the clone (right?)
 git submodule update --init --recursive
 cd src
 make -j$(nproc)