feat: update base64 version

src/util.rs

@@ -0,0 +1,10 @@
+use base64::{DecodeError, Engine};
+use base64::engine::general_purpose::STANDARD;
+
+pub fn base64_encode<T: AsRef<[u8]>>(input: T) -> String {
+    STANDARD.encode(input)
+}
+
+pub fn base64_decode<T: AsRef<[u8]>>(input: T) -> Result<Vec<u8>, DecodeError> {
+    STANDARD.decode(input)
+}