Replace Duration::from_secs(900) to Duration::from_mins(15)

Summary:
Rust 1.91 introduced `Duration::from_mins`.

This diff replaces some instances of `Duration::from_secs` with the corresponding `Duration::from_mins`.

Reviewed By: dtolnay

Differential Revision: D88441009

fbshipit-source-id: bb90b581fac842b44c4a87ca69c0c7f210366b12

Author: edward-shen

src/executors/executor.rs

@@ -25,7 +25,7 @@ use crate::testcase::TestCase;
 
 lazy_static! {
     /// Default timeout for all executions within a single test document
-    pub static ref DEFAULT_TOTAL_TIMEOUT: Duration = Duration::from_secs(900);
+    pub static ref DEFAULT_TOTAL_TIMEOUT: Duration = Duration::from_mins(15);
 }
 
 pub type Result<T> = anyhow::Result<T, ExecutionError>;