docker: install clang-tools-18

[avikivity]

to address the build failure caused by https://github.com/llvm/llvm-project/issues/59827, and to test the build with C++23, we need to use clang-18. which will be released in March 2023.

Signed-off-by: Kefu Chai [email protected]

Closes scylladb/seastar#2058

[avi: regenerate toolchain]

[avikivity]

@tchaikov tests fail

[tchaikov]

@avikivity thank you for redo the image. because clang-scan-deps is packaged in clang-tools-18 package. we need to update circleci to use clang-18 for building C++20 module. i updated #2058 to use docker.io/scylladb/seastar-toolchain:2024-02-01.

[avikivity]

It still fails.

[tchaikov]

It still fails.

@avikivity after applying #2071 , the build should be green now .

[tchaikov]

i am closing this change. as 233b48c152de353ff0b2e8cac8c57f71c2019ebc has landed on master.