Merge upstream/main into add-ws-transport

Resolved conflicts in:
- .gitignore: Combined JavaScript interop and Sphinx build ignores
- libp2p/__init__.py: Integrated QUIC transport support with WebSocket transport
- libp2p/network/swarm.py: Used upstream's improved listener handling
- pyproject.toml: Kept both WebSocket and QUIC dependencies

This merge brings in:
- QUIC transport implementation
- Enhanced swarm functionality
- Improved peer discovery
- Better error handling
- Updated dependencies and documentation

WebSocket transport implementation remains intact and functional.

pyproject.toml

@@ -16,13 +16,15 @@ maintainers = [
     { name = "Dave Grantham", email = "dwg@linuxprogrammer.org" },
 ]
 dependencies = [
+    "aioquic>=1.2.0",
     "base58>=1.0.3",
-    "coincurve>=10.0.0",
+    "coincurve==21.0.0",
     "exceptiongroup>=1.2.0; python_version < '3.11'",
+    "fastecdsa==2.3.2; sys_platform != 'win32'",
     "grpcio>=1.41.0",
     "lru-dict>=1.1.6",
-    # "multiaddr>=0.0.9",
-    "multiaddr @ git+https://github.com/multiformats/py-multiaddr.git@db8124e2321f316d3b7d2733c7df11d6ad9c03e6",
+    # "multiaddr (>=0.0.9,<0.0.10)",
+    "multiaddr @ git+https://github.com/multiformats/py-multiaddr.git@3ea7f866fda9268ee92506edf9d8e975274bf941",
     "mypy-protobuf>=3.0.0",
     "noiseprotocol>=0.3.0",
     "protobuf>=4.25.0,<5.0.0",
@@ -53,6 +55,7 @@ Homepage = "https://github.com/libp2p/py-libp2p"
 [project.scripts]
 chat-demo = "examples.chat.chat:main"
 echo-demo = "examples.echo.echo:main"
+echo-quic-demo="examples.echo.echo_quic:main"
 ping-demo = "examples.ping.ping:main"
 identify-demo = "examples.identify.identify:main"
 identify-push-demo = "examples.identify_push.identify_push_demo:run_main"
@@ -78,6 +81,7 @@ dev = [
     "pytest>=7.0.0",
     "pytest-xdist>=2.4.0",
     "pytest-trio>=0.5.2",
+    "pytest-timeout>=2.4.0",
     "factory-boy>=2.12.0,<3.0.0",
     "ruff>=0.11.10",
     "pyrefly (>=0.17.1,<0.18.0)",
@@ -89,11 +93,12 @@ docs = [
     "tomli; python_version < '3.11'",
 ]
 test = [
+    "factory-boy>=2.12.0,<3.0.0",
     "p2pclient==0.2.0",
     "pytest>=7.0.0",
-    "pytest-xdist>=2.4.0",
+    "pytest-timeout>=2.4.0",
     "pytest-trio>=0.5.2",
-    "factory-boy>=2.12.0,<3.0.0",
+    "pytest-xdist>=2.4.0",
 ]
 
 [tool.setuptools]
@@ -283,4 +288,5 @@ project_excludes = [
     "**/*pb2.py",
     "**/*.pyi",
     ".venv/**",
+    "./tests/interop/nim_libp2p",
 ]