chore: update dependencies

[joebowbeer]

Description

• Update dependencies related to devcontainer: Ubuntu 22.04 LTS and NodeJS 22.16 LTS.
• Adjust linux user ID to match updated Ubuntu version.
• npm audit fix.
• Update GitHub Actions versions.
• Pin 3rd-party GitHub Actions to commit hash (per GitHub recommendation)

1️⃣ Testing

All modified and coverable lines are covered by tests. (The only code that changed is a test.)

All tests pass, once a flaky e2e test was fixed:

✕ should be able to unregister a reminder (1237 ms)

Rationale for change: The important thing to test is that the counter doesn't change after the reminder is unregistered. The exact counter value is not important in this test.

2️⃣ Codecov

Why is codecov complaining even though the only code changed was a test?

Is this a byproduct of upgrading the codecov action from v1 to v5?

3️⃣ Added lines

All of the added lines are coming from typescript-build's updated package-lock.json

Issue reference

We strive to have all PR being opened based on an issue, where the problem or feature have been discussed prior to implementation.

Please reference the issue this PR will close: #698

Checklist

Please make sure you've completed the relevant tasks for this PR, out of the following list:

• Code compiles correctly
• Created/updated tests (N/A)
• Extended the documentation (N/A)

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 54.84%. Comparing base (d1bf38a) to head (6ac46d5).
Report is 30 commits behind head on main.

Additional details and impacted files

@@             Coverage Diff              @@
##              main     #699       +/-   ##
============================================
- Coverage   100.00%   54.84%   -45.16%     
============================================
  Files            1       14       +13     
  Lines            6      330      +324     
  Branches         1       66       +65     
============================================
+ Hits             6      181      +175     
- Misses           0      131      +131     
- Partials         0       18       +18     

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[WhitWaldo]

Looks good to me - thank you for putting this together!