Update clang-format to 18

Author: kounelisagis

ci/scripts/check_formatting_linux.sh

@@ -3,7 +3,7 @@
 #
 # The MIT License (MIT)
 #
-# Copyright (c) 2021 TileDB, Inc.
+# Copyright (c) 2024 TileDB, Inc.
 #
 # Permission is hereby granted, free of charge, to any person obtaining a copy
 # of this software and associated documentation files (the "Software"), to deal
@@ -35,4 +35,4 @@ sudo ./ci/scripts/install-clangformat.sh
 src=$GITHUB_WORKSPACE
 cd $src
 
-$src/ci/scripts/run-clang-format.sh $src clang-format-16 0
+$src/ci/scripts/run-clang-format.sh $src clang-format-18 0

ci/scripts/install-clangformat.sh

@@ -3,7 +3,7 @@
 #
 # The MIT License (MIT)
 #
-# Copyright (c) 2019-2021 TileDB, Inc.
+# Copyright (c) 2019-2024 TileDB, Inc.
 #
 # Permission is hereby granted, free of charge, to any person obtaining a copy
 # of this software and associated documentation files (the "Software"), to deal
@@ -29,9 +29,9 @@ die() {
 }
 
 install_apt_pkg() {
-  wget -O - https://apt.llvm.org/llvm-snapshot.gpg.key | sudo apt-key add -
-  add-apt-repository 'deb http://apt.llvm.org/focal/ llvm-toolchain-focal-16 main' &&
-  apt-get update -qq && apt-get install -qq -y clang-format-16
+  wget -O - https://apt.llvm.org/llvm-snapshot.gpg.key > /etc/apt/trusted.gpg.d/apt.llvm.org.asc
+  add-apt-repository 'deb http://apt.llvm.org/focal/ llvm-toolchain-focal-18 main' &&
+  apt-get update -qq && apt-get install -qq -y clang-format-18
 }
 
 install_brew_pkg() {