RUSTSEC-2021-0076 bump libsecp256k1 (#9391)

* RUSTSEC-2021-0076 bump libsecp256k1

libsecp256k1 allows overflowing signatures
https://rustsec.org/advisories/RUSTSEC-2021-0076

Changes were made to conform to libsecp256k1 version differences.

Closes #9356

* parse_standard_slice() -> parse_overflowing_slice()

* Added v2 host function for ecdsa_verify

* Add feature tag over helpers

* Added ecdsa_verify v2 to test runner

* PR feedback

- Spaces -> tabs
- renamed two helper functions

* Fixed imports after rebasing

* Bump rest of libsecp256k1 (and libp2p)

libp2p also uses libsecp256k1 so it is required to be bumped too, along
with all the version difference changes.

* Add version2 for ecdsa pubkey recovery

* libp2p rebase master fixes

* Fix test panic when non Behaviour event is returned

* Update bin/node/browser-testing/Cargo.toml

* Update primitives/core/src/ecdsa.rs

* Update primitives/core/src/ecdsa.rs

* Update Cargo.lock

Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com>

substrate/bin/node/cli/Cargo.toml

@@ -95,10 +95,8 @@ try-runtime-cli = { version = "0.10.0-dev", optional = true, path = "../../../ut
 # WASM-specific dependencies
 wasm-bindgen = { version = "0.2.73", optional = true }
 wasm-bindgen-futures = { version = "0.4.18", optional = true }
-browser-utils = { package = "substrate-browser-utils", path = "../../../utils/browser", optional = true, version = "0.10.0-dev" }
-libp2p-wasm-ext = { version = "0.28", features = [
-	"websocket",
-], optional = true }
+browser-utils = { package = "substrate-browser-utils", path = "../../../utils/browser", optional = true, version = "0.10.0-dev"}
+libp2p-wasm-ext = { version = "0.29", features = ["websocket"], optional = true }
 
 [target.'cfg(target_arch="x86_64")'.dependencies]
 node-executor = { version = "3.0.0-dev", path = "../executor", features = [