Add libuv and uvwasi to attributions (#1057)

ATTRIBUTIONS.md

@@ -11,6 +11,8 @@ WAMR project reused some components from other open source project:
 - **wasmtime**: for the wasi libc implementation
 - **zephyr**: for several platform specific examples
 - **WebAssembly debugging patch for LLDB**: for extending the ability of LLDB to support wasm debugging
+- **libuv**: for the WASI Libc with uvwasi implementation
+- **uvwasi**: for the WASI Libc with uvwasi implementation
 
 The WAMR fast interpreter is a clean room development. We would acknowledge the inspirations by [WASM3](https://github.com/wasm3/wasm3) open source project for the approach of pre-calculated oprand stack location.
 
@@ -25,6 +27,8 @@ The WAMR fast interpreter is a clean room development. We would acknowledge the
 | wasmtime | unspecified | v0.26.0 | https://github.com/bytecodealliance/wasmtime | |
 | zephyr | unspecified | v2.5.0 | https://www.zephyrproject.org/ | https://www.cvedetails.com/vendor/19255/Zephyrproject.html |
 | WebAssembly debugging patch for LLDB | unspecified | unspecified | https://reviews.llvm.org/D78801 | |
+| libuv | v1.42.0 | v1.44.1 | https://github.com/libuv/libuv | https://www.cvedetails.com/vendor/15402/Libuv-Project.html |
+| uvwasi | unspecified | v0.0.12 | https://github.com/nodejs/uvwasi | |
 
 ## Licenses
 
@@ -69,3 +73,9 @@ The WAMR fast interpreter is a clean room development. We would acknowledge the
 ### wac
 
 [LICENSE](./tests/wamr-test-suites/spec-test-script/LICENSE)
+
+### libuv
+[LICENSE](./core/iwasm/libraries/libc-uvwasi/LICENSE_LIBUV)
+
+### uvwasi
+[LICENSE](./core/iwasm/libraries/libc-uvwasi/LICENSE_UVWASI)