[Backport release 24.11] teleport_15: 15.4.21 -> 15.4.26, teleport_16: 16.4.6 -> 16.4.14

[JuliusFreudenberger]

Manual backport of #376749

Things done

• Built on platform(s)
  • x86_64-linux
  • aarch64-linux
  • x86_64-darwin
  • aarch64-darwin
• For non-Linux: Is sandboxing enabled in nix.conf? (See Nix manual)
  • sandbox = relaxed
  • sandbox = true
• Tested, as applicable:
  • NixOS test(s) (look inside nixos/tests)
  • and/or package tests
  • or, for functions and "core" functionality, tests in lib/tests or pkgs/test
  • made sure NixOS tests are linked to the relevant packages
• Tested compilation of all packages that depend on this change using nix-shell -p nixpkgs-review --run "nixpkgs-review rev HEAD". Note: all changes have to be committed, also see nixpkgs-review usage
• Tested basic functionality of all binary files (usually in ./result/bin/)
• 25.05 Release Notes (or backporting 24.11 and 25.05 Release notes)
  • (Package updates) Added a release notes entry if the change is major or breaking
  • (Module updates) Added a release notes entry if the change is significant
  • (Module addition) Added a release notes entry if adding a new NixOS module
• Fits CONTRIBUTING.md.

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[JuliusFreudenberger]

nixpkgs-review result

Generated using nixpkgs-review.

Command: nixpkgs-review pr 378929

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x86_64-linux

✅ 4 packages built:

• teleport (teleport_16)
• teleport.client (teleport_16.client)
• teleport_15
• teleport_15.client

[JuliusFreudenberger]

Regarding the failing cherry-pick check which wants to draw attention:
Because #377534 did not receive a backport, I needed to readd the override for wasm-bindgen to change it to the correct version.

[techknowlogick]

Thanks!