Update base64 to 0.12

This is the same version of base64 as used by pbkdf2.

Update base64 to 0.12
This is the same version of base64 as used by pbkdf2.
a120ec9b · Alyssa Ross · Katharina Fey · 5eb24810 · a120ec9b
Verified Commit a120ec9b authored Feb 27, 2021 by Alyssa Ross Committed by Katharina Fey Feb 28, 2021
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -13,7 +13,7 @@ rand = "0.7"
 pbkdf2 = "0.4"
 blake2 = "0.9"
 hmac = "0.8"
-base64 = "0.9"
+base64 = "0.12"

 serde = "1.0"
 serde_derive = "1.0"