Merge branch 'bugfix-2.1.x' into FixPIDMenus

.github/workflows/check-pr.yml

@@ -29,6 +29,6 @@ jobs:
 
           Please redo this PR starting with the `bugfix-2.1.x` branch and be careful to target `bugfix-2.1.x` when resubmitting the PR. Patches may also target `bugfix-2.0.x` if they are specifically for 2.0.9.x.
 
-          It may help to set your fork's default branch to `bugfix-2.1.x`.
+          It may help to set your fork's default branch to `bugfix-2.0.x`.
 
           See [this page](https://marlinfw.org/docs/development/getting_started_pull_requests.html) for full instructions.

.github/workflows/test-builds.yml

@@ -44,7 +44,6 @@ jobs:
         - teensy31
         - teensy35
         - teensy41
-        - SAMD21_minitronics20
         - SAMD51_grandcentral_m4
         - PANDA_PI_V29
 

.gitignore

@@ -111,7 +111,7 @@ tags
 *.app
 *.i*86
 *.x86_64
-
+*.hex
 
 # Debug files
 *.dSYM/
@@ -170,4 +170,3 @@ __pycache__
 
 # IOLogger logs
 *_log.csv
-.vscode/extensions.json