chore: dump MSRV to 1.65.0 by removing usage of .is_some_and()

Cargo.toml

@@ -8,7 +8,7 @@ repository = "https://github.com/Eppo-exp/rust-sdk"
 license = "MIT"
 keywords = ["eppo", "feature-flags"]
 categories = ["config"]
-rust-version = "1.70.0"
+rust-version = "1.65.0"
 
 [dependencies]
 chrono = { version = "0.4.38", features = ["serde"] }

src/eval.rs

@@ -126,8 +126,8 @@ impl Allocation {
     }
 
     fn is_allowed_by_time(&self, now: Timestamp) -> bool {
-        let forbidden =
-            self.start_at.is_some_and(|t| now < t) || self.end_at.is_some_and(|t| now > t);
+        let forbidden = matches!(self.start_at, Some(t) if now < t)
+            || matches!(self.end_at, Some(t) if now > t);
         !forbidden
     }
 

src/rules.rs

@@ -128,7 +128,7 @@ impl Operator {
 
             Self::IsNull => {
                 let is_null =
-                    attribute.is_none() || attribute.is_some_and(|v| v == &AttributeValue::Null);
+                    attribute.is_none() || matches!(attribute, Some(&AttributeValue::Null));
                 match condition_value {
                     ConditionValue::Single(Value::Boolean(true)) => Some(is_null),
                     ConditionValue::Single(Value::Boolean(false)) => Some(!is_null),