core: bump node from 18 to 20 (#5329)

* core: bump node from 18 to 20

Bumps node from 18 to 20.

---
updated-dependencies:
- dependency-name: node
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

* bump node everywhere, fixup go ci

Signed-off-by: Jens Langhammer <jens@goauthentik.io>

* bump versions in docs

Signed-off-by: Jens Langhammer <jens@goauthentik.io>

---------

Signed-off-by: dependabot[bot] <support@github.com>
Signed-off-by: Jens Langhammer <jens@goauthentik.io>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Jens Langhammer <jens@goauthentik.io>

website/developer-docs/setup/frontend-dev-environment.md

@@ -6,12 +6,12 @@ If you want to only make changes on the UI, you don't need a backend running fro
 
 ### Prerequisites
 
--   Node (any recent version should work, we use 18.x to build)
+-   Node (any recent version should work, we use 20.x to build)
 -   Make (again, any recent version should work)
 -   Docker and docker-compose
 
 :::info
-Depending on platform, some native dependencies might be required. On macOS, run `brew install node@18`, and for docker `brew install --cask docker`
+Depending on platform, some native dependencies might be required. On macOS, run `brew install node@20`, and for docker `brew install --cask docker`
 :::
 
 ### Instructions

website/developer-docs/setup/full-dev-environment.md

@@ -6,10 +6,10 @@ title: Full development environment
 
 -   Python 3.11
 -   poetry, which is used to manage dependencies, and can be installed with `pip install poetry`
--   Go 1.18
+-   Go 1.20
+-   Node 20
 -   PostgreSQL (any recent version will do)
 -   Redis (any recent version will do)
--   Node 16 (or later)
 
 ## Services Setup
 
@@ -24,7 +24,7 @@ poetry install # Install all required dependencies, including development depend
 ```
 
 :::info
-Depending on platform, some native dependencies might be required. On macOS, run `brew install libxmlsec1 libpq`, and for the CLI tools `brew install postgresql redis node@18`
+Depending on platform, some native dependencies might be required. On macOS, run `brew install libxmlsec1 libpq`, and for the CLI tools `brew install postgresql redis node@20`
 :::
 
 To configure authentik to use the local databases, we need a local config file. This file can be generated by running `make gen-dev-config`.

website/developer-docs/setup/website-dev-environment.md

@@ -6,11 +6,11 @@ If you want to only make changes to the website, you only need node.
 
 ### Prerequisites
 
--   Node (any recent version should work, we use 18.x to build)
+-   Node (any recent version should work, we use 20.x to build)
 -   Make (again, any recent version should work)
 
 :::info
-Depending on platform, some native dependencies might be required. On macOS, run `brew install node@18`
+Depending on platform, some native dependencies might be required. On macOS, run `brew install node@20`
 :::
 
 ### Instructions