Add prost toolchain to feo

[marcmo]

originates from CR #136750

[github-actions]

License Check Results

🚀 The license check job ran with the Bazel command:

bazel run //:license-check

Status: ⚠️ Needs Review

Click to expand output

[License Check Output]
Starting local Bazel server (8.3.0) and connecting to it...
INFO: Invocation ID: bc8d0759-d050-4a70-8f81-01e96c0218f0
Computing main repo mapping: 
Computing main repo mapping: 
DEBUG: Rule 'rules_boost+' indicated that a canonical reproducible form can be obtained by modifying arguments integrity = "sha256-iKHWUIBrUN/fFOCltkTmHfDcKw0h4ZVmP7NVSoc8zBs="
DEBUG: Repository rules_boost+ instantiated at:
  <builtin>: in <toplevel>
Repository rule http_archive defined at:
  /home/runner/.bazel/external/bazel_tools/tools/build_defs/repo/http.bzl:394:31: in <toplevel>
Computing main repo mapping: 
Computing main repo mapping: 
Computing main repo mapping: 
Computing main repo mapping: 
Computing main repo mapping: 
Computing main repo mapping: 
Computing main repo mapping: 
Loading: 
Loading: 4 packages loaded
Loading: 4 packages loaded
    currently loading: 
Analyzing: target //:license-check (5 packages loaded, 0 targets configured)
Analyzing: target //:license-check (5 packages loaded, 0 targets configured)

Analyzing: target //:license-check (84 packages loaded, 9 targets configured)

Analyzing: target //:license-check (150 packages loaded, 1588 targets configured)

Analyzing: target //:license-check (156 packages loaded, 6864 targets configured)

Analyzing: target //:license-check (156 packages loaded, 6864 targets configured)

INFO: Analyzed target //:license-check (159 packages loaded, 8880 targets configured).
[12 / 13] [Prepa] Generating Dash formatted dependency file ...
INFO: From Generating Dash formatted dependency file ...:
INFO: Successfully converted 2 packages from Cargo.lock to bazel-out/k8-fastbuild/bin/formatted.txt
INFO: Found 1 target...
Target //:license.check.license_check up-to-date:
  bazel-bin/license.check.license_check
  bazel-bin/license.check.license_check.jar
INFO: Elapsed time: 17.990s, Critical Path: 0.39s
INFO: 13 processes: 4 disk cache hit, 9 internal.
INFO: Build completed successfully, 13 total actions
INFO: Running command line: bazel-bin/license.check.license_check ./formatted.txt <args omitted>
usage: org.eclipse.dash.licenses.cli.Main [-batch <int>] [-cd <url>]
       [-confidence <int>] [-ef <url>] [-excludeSources <sources>] [-help] [-lic
       <url>] [-project <shortname>] [-repo <url>] [-review] [-summary <file>]
       [-timeout <seconds>] [-token <token>]

[github-actions]

The created documentation from the pull request is available at: docu-html