chore(submodule): update zerokit submodule to v0.5.1

.gitmodules

@@ -143,7 +143,7 @@
 	path = vendor/zerokit
 	url = https://github.com/vacp2p/zerokit.git
 	ignore = dirty
-	branch = v0.3.4
+	branch = v0.5.1
 [submodule "vendor/nim-regex"]
 	path = vendor/nim-regex
 	url = https://github.com/nitely/nim-regex.git

Makefile

@@ -136,10 +136,10 @@ clean: | clean-libbacktrace
 ##################
 ##     RLN      ##
 ##################
-.PHONY: librln shouldUseRLNV2
+.PHONY: librln
 
 LIBRLN_BUILDDIR := $(CURDIR)/vendor/zerokit
-LIBRLN_VERSION := v0.4.4
+LIBRLN_VERSION := v0.5.1
 
 ifeq ($(OS),Windows_NT)
 LIBRLN_FILE := rln.lib
@@ -311,7 +311,7 @@ endif
 
 rebuild-nat-libs: | clean-cross nat-libs
 
-libwaku-android-precheck: shouldUseRLNV2
+libwaku-android-precheck:
 ifndef ANDROID_NDK_HOME
 		$(error ANDROID_NDK_HOME is not set)
 endif

scripts/build_rln.sh

@@ -19,9 +19,9 @@ host_triplet=$(rustc --version --verbose | awk '/host:/{print $2}')
 
 tarball="${host_triplet}"
 
-# use arkzkey feature for v0.4.4
+# use arkzkey feature for v0.5.1
 # TODO: update this script in the future when arkzkey is default
-if [[ "${rln_version}" == "v0.4.4" ]]; then
+if [[ "${rln_version}" == "v0.5.1" ]]; then
     tarball+="-arkzkey-rln.tar.gz"
 else
     tarball+="-rln.tar.gz"
@@ -52,6 +52,6 @@ else
         exit 1
     fi
     # if submodule version = version in Makefile, build rln
-    cargo build --release -p rln --manifest-path "${build_dir}/rln/Cargo.toml"
+    cargo build --release -p rln --manifest-path "${build_dir}/rln/Cargo.toml" --features arkzkey
     cp "${build_dir}/target/release/librln.a" "${output_filename}"
 fi