new(scripts): support InRelease file creation for publish-deb script.

Newest Debian/Ubuntu versions look for this file instead of Release + Release.asc, hitting lots of 404 (and a retry on the old format).

Signed-off-by: Federico Di Pierro <nierro92@gmail.com>

scripts/publish-deb

@@ -88,10 +88,15 @@ update_repo() {
       -o APT::FTPArchive::Release::Architectures="$(join_arr , "${architectures[@]}")" \
       ${release_dir} > ${release_dir}/Release
 
-    # release signature
+    # release signature - Release.gpg file
     gpg --detach-sign --digest-algo SHA256 --armor ${release_dir}/Release
     rm -f ${release_dir}/Release.gpg
     mv ${release_dir}/Release.asc ${release_dir}/Release.gpg
+    
+    # release signature - InRelease file
+    gpg --armor --sign --clearsign --digest-algo SHA256 Release
+    rm -f ${release_dir}/InRelease
+    mv ${release_dir}/Release.asc ${release_dir}/InRelease
 
     popd > /dev/null
 }