ci: Update LLVM tools to v20 (#2278)

Trying in https://github.com/XRPLF/clio/pull/2280

.github/workflows/clang-tidy.yml

@@ -18,6 +18,7 @@ concurrency:
 
 env:
   CONAN_PROFILE: clang
+  LLVM_TOOLS_VERSION: 20
 
 jobs:
   clang_tidy:
@@ -61,7 +62,7 @@ jobs:
         shell: bash
         id: run_clang_tidy
         run: |
-          run-clang-tidy-19 -p build -j "${{ steps.number_of_threads.outputs.threads_number }}" -fix -quiet 1>output.txt
+          run-clang-tidy-${{ env.LLVM_TOOLS_VERSION }} -p build -j "${{ steps.number_of_threads.outputs.threads_number }}" -fix -quiet 1>output.txt
 
       - name: Fix local includes and clang-format style
         if: ${{ steps.run_clang_tidy.outcome != 'success' }}

cmake/ClangTidy.cmake

@@ -8,7 +8,7 @@ if (lint)
     endif ()
     message(STATUS "Using clang-tidy from CLIO_CLANG_TIDY_BIN")
   else ()
-    find_program(_CLANG_TIDY_BIN NAMES "clang-tidy-19" "clang-tidy" REQUIRED)
+    find_program(_CLANG_TIDY_BIN NAMES "clang-tidy-20" "clang-tidy" REQUIRED)
   endif ()
 
   if (NOT _CLANG_TIDY_BIN)

docker/ci/Dockerfile

@@ -16,7 +16,7 @@ SHELL ["/bin/bash", "-o", "pipefail", "-c"]
 USER root
 WORKDIR /root
 
-ARG LLVM_TOOLS_VERSION=19
+ARG LLVM_TOOLS_VERSION=20
 
 # Add repositories
 RUN apt-get update \

docs/build-clio.md

@@ -222,18 +222,16 @@ Sometimes, during development, you need to build against a custom version of `li
 
 ## Using `clang-tidy` for static analysis
 
-The minimum [clang-tidy](https://clang.llvm.org/extra/clang-tidy/) version required is 19.0.
-
 Clang-tidy can be run by CMake when building the project.
 To achieve this, you just need to provide the option `-o '&:lint=True'` for the `conan install` command:
 
 ```sh
-conan install .. --output-folder . --build missing --settings build_type=Release -o '&:tests=True' -o '&:lint=True'
+conan install .. --output-folder . --build missing --settings build_type=Release -o '&:tests=True' -o '&:lint=True' --profile:all clang
 ```
 
 By default CMake will try to find `clang-tidy` automatically in your system.
 To force CMake to use your desired binary, set the `CLIO_CLANG_TIDY_BIN` environment variable to the path of the `clang-tidy` binary. For example:
 
 ```sh
-export CLIO_CLANG_TIDY_BIN=/opt/homebrew/opt/llvm@19/bin/clang-tidy
+export CLIO_CLANG_TIDY_BIN=/opt/homebrew/opt/llvm/bin/clang-tidy
 ```