chore: Update litep2p to version 0.8.4 (#6860)

## [0.8.4] - 2024-12-12

This release aims to make the MDNS component more robust by fixing a bug
that caused the MDNS service to fail to register opened substreams.
Additionally, the release includes several improvements to the
`identify` protocol, replacing `FuturesUnordered` with `FuturesStream`
for better performance.

### Fixed

- mdns/fix: Failed to register opened substream
([#301](paritytech/litep2p#301))

### Changed

- identify: Replace FuturesUnordered with FuturesStream
([#302](paritytech/litep2p#302))
- chore: Update hickory-resolver to version 0.24.2
([#304](paritytech/litep2p#304))
- ci: Ensure cargo-machete is working with rust version from CI
([#303](paritytech/litep2p#303))


cc @paritytech/networking

---------

Signed-off-by: Alexandru Vasile <[email protected]>

Cargo.toml

@@ -848,7 +848,7 @@ linked-hash-map = { version = "0.5.4" }
 linked_hash_set = { version = "0.1.4" }
 linregress = { version = "0.5.1" }
 lite-json = { version = "0.2.0", default-features = false }
-litep2p = { version = "0.8.3", features = ["websocket"] }
+litep2p = { version = "0.8.4", features = ["websocket"] }
 log = { version = "0.4.22", default-features = false }
 macro_magic = { version = "0.5.1" }
 maplit = { version = "1.0.2" }

prdoc/pr_6860.prdoc

@@ -0,0 +1,10 @@
+title: Update litep2p network backend to v0.8.4
+
+doc:
+  - audience: [ Node Dev, Node Operator ]
+    description: |
+      This PR updates the Litep2p network backend to version 0.8.4
+
+crates: 
+  - name: sc-network
+    bump: patch