[Rust] Update devcontainer-feature.json to include rust versions until 1.79 (#1040)

* Update devcontainer-feature.json to include rust versions until 1.79

Update devcontainer.json to enable pinning rustc version upto 1.79

* Bump patch version for devcontainer.json

src/rust/devcontainer-feature.json

 {
     "id": "rust",
-    "version": "1.3.0",
+    "version": "1.3.1",
     "name": "Rust",
     "documentationURL": "https://github.com/devcontainers/features/tree/main/src/rust",
     "description": "Installs Rust, common Rust utilities, and their required dependencies",
@@ -10,6 +10,9 @@
             "proposals": [
                 "latest",
                 "none",
+                "1.79",
+                "1.78",
+                "1.77",
                 "1.76",
                 "1.75",
                 "1.74",