docs: update discord invite to permanent one

.github/ISSUE_TEMPLATE/config.yml

@@ -7,5 +7,5 @@ contact_links:
     url: https://github.com/PyO3/pyo3/discussions
     about: For troubleshooting help, see the Discussions
   - name: 👋 Chat
-    url: https://discord.gg/c4BwayXQ
+    url: https://discord.gg/33kcChzH7f
     about: Engage with PyO3's users and developers on Discord

Contributing.md

@@ -29,7 +29,7 @@ To work and develop PyO3, you need Python & Rust installed on your system.
 
 ### Help users identify bugs
 
-The [PyO3 Discord server](https://discord.gg/c4BwayXQ) is very active with users who are new to PyO3, and often completely new to Rust. Helping them debug is a great way to get experience with the PyO3 codebase.
+The [PyO3 Discord server](https://discord.gg/33kcChzH7f) is very active with users who are new to PyO3, and often completely new to Rust. Helping them debug is a great way to get experience with the PyO3 codebase.
 
 Helping others often reveals bugs, documentation weaknesses, and missing APIs. It's a good idea to open GitHub issues for these immediately so the resolution can be designed and implemented!
 
@@ -203,7 +203,7 @@ You can install an IDE plugin to view the coverage. For example, if you use VSCo
 
 ## Sponsor this project
 
-At the moment there is no official organisation that accepts sponsorship on PyO3's behalf. If you're seeking to provide significant funding to the PyO3 ecosystem, please reach out to us on [GitHub](https://github.com/PyO3/pyo3/issues/new) or [Discord](https://discord.gg/c4BwayXQ) and we can discuss.
+At the moment there is no official organisation that accepts sponsorship on PyO3's behalf. If you're seeking to provide significant funding to the PyO3 ecosystem, please reach out to us on [GitHub](https://github.com/PyO3/pyo3/issues/new) or [Discord](https://discord.gg/33kcChzH7f) and we can discuss.
 
 In the meanwhile, some of our maintainers have personal GitHub sponsorship pages and would be grateful for your support:
 

README.md

@@ -5,7 +5,7 @@
 [![codecov](https://img.shields.io/codecov/c/gh/PyO3/pyo3?logo=codecov)](https://codecov.io/gh/PyO3/pyo3)
 [![crates.io](https://img.shields.io/crates/v/pyo3?logo=rust)](https://crates.io/crates/pyo3)
 [![minimum rustc 1.56](https://img.shields.io/badge/rustc-1.56+-blue?logo=rust)](https://rust-lang.github.io/rfcs/2495-min-rust-version.html)
-[![discord server](https://img.shields.io/discord/1209263839632424990?logo=discord)](https://discord.gg/c4BwayXQ)
+[![discord server](https://img.shields.io/discord/1209263839632424990?logo=discord)](https://discord.gg/33kcChzH7f)
 [![contributing notes](https://img.shields.io/badge/contribute-on%20github-Green?logo=github)](https://github.com/PyO3/pyo3/blob/main/Contributing.md)
 
 [Rust](https://www.rust-lang.org/) bindings for [Python](https://www.python.org/), including tools for creating native Python extension modules. Running and interacting with Python code from a Rust binary is also supported.
@@ -237,7 +237,7 @@ about this topic.
 
 Everyone is welcomed to contribute to PyO3! There are many ways to support the project, such as:
 
-- help PyO3 users with issues on GitHub and [Discord](https://discord.gg/c4BwayXQ)
+- help PyO3 users with issues on GitHub and [Discord](https://discord.gg/33kcChzH7f)
 - improve documentation
 - write features and bugfixes
 - publish blogs and examples of how to use PyO3

guide/src/faq.md

@@ -1,6 +1,6 @@
 # Frequently Asked Questions and troubleshooting
 
-Sorry that you're having trouble using PyO3. If you can't find the answer to your problem in the list below, you can also reach out for help on [GitHub Discussions](https://github.com/PyO3/pyo3/discussions) and on [Discord](https://discord.gg/c4BwayXQ).
+Sorry that you're having trouble using PyO3. If you can't find the answer to your problem in the list below, you can also reach out for help on [GitHub Discussions](https://github.com/PyO3/pyo3/discussions) and on [Discord](https://discord.gg/33kcChzH7f).
 
 ## I'm experiencing deadlocks using PyO3 with lazy_static or once_cell!
 

guide/src/getting_started.md

@@ -2,7 +2,7 @@
 
 To get started using PyO3 you will need three things: a Rust toolchain, a Python environment, and a way to build. We'll cover each of these below.
 
-> If you'd like to chat to the PyO3 maintainers and other PyO3 users, consider joining the [PyO3 Discord server](https://discord.gg/c4BwayXQ). We're keen to hear about your experience getting started, so we can make PyO3 as accessible as possible for everyone!
+> If you'd like to chat to the PyO3 maintainers and other PyO3 users, consider joining the [PyO3 Discord server](https://discord.gg/33kcChzH7f). We're keen to hear about your experience getting started, so we can make PyO3 as accessible as possible for everyone!
 
 ## Rust