Merge pull request #523 from rust-lang/renovate/askama-0.x

Update Rust crate askama to 0.15.0

Author: Kobzol

Cargo.lock

@@ -40,7 +40,7 @@ jsonwebtoken = "10"
 url = "2"
 reqwest = { version = "0.12", features = ["json", "rustls-tls"], default-features = false }
 http = "1"
-askama = "0.14.0"
+askama = "0.15.0"
 
 # Cryptography
 sha2 = "0.10"