Create rule S7444: checked_add and overflowing_add should be used to prevent overflows (#4788)

* Create rule S7444

* Update RSPEC

---------

Co-authored-by: yassin-kammoun-sonarsource <yassin-kammoun-sonarsource@users.noreply.github.com>
Co-authored-by: yassin-kammoun-sonarsource <yassin.kammoun@sonarsource.com>

rules/S7444/metadata.json

@@ -0,0 +1,2 @@
+{
+}

rules/S7444/rust/metadata.json

@@ -0,0 +1,24 @@
+{
+  "title": "`checked_add` and `overflowing_add` should be used to prevent overflows",
+  "type": "BUG",
+  "status": "ready",
+  "remediation": {
+    "func": "Constant\/Issue",
+    "constantCost": "5min"
+  },
+  "tags": [
+    "clippy"
+  ],
+  "defaultSeverity": "Major",
+  "ruleSpecification": "RSPEC-7444",
+  "sqKey": "S7444",
+  "scope": "All",
+  "defaultQualityProfiles": ["Sonar way"],
+  "quickfix": "unknown",
+  "code": {
+    "impacts": {
+      "RELIABILITY": "MEDIUM"
+    },
+    "attribute": "LOGICAL"
+  }
+}

rules/S7444/rust/rule.adoc

@@ -0,0 +1,34 @@
+== Why is this an issue?
+
+C-style underflow/overflow checks will panic in debug builds. Using safe methods like `checked_add` or `overflowing_add` ensures that overflow conditions are explicitly handled, preventing unexpected panics.
+
+=== Code examples
+
+==== Noncompliant code example
+
+[source,rust,diff-id=1,diff-type=noncompliant]
+----
+let a = 1i32;
+let b = 2i32;
+if a + b < a {
+// Noncompliant: This will panic in debug builds
+// handle overflow
+}
+----
+
+==== Compliant solution
+
+[source,rust,diff-id=1,diff-type=compliant]
+----
+let a = 1i32;
+let b = 2i32;
+if a.checked_add(b).is_none() {
+// Compliant: Explicitly handle overflow
+// handle overflow
+}
+----
+
+== Resources
+=== Documentation
+
+* Clippy Lints - https://rust-lang.github.io/rust-clippy/master/index.html#panicking_overflow_checks