drm_hwcomposer: CI: Bump clang toolchain version to v14

Additionally:
1. Fix new clang-tidy findings
2. Disable readability-identifier-length check for all tidy levels

Signed-off-by: Roman Stratiienko <roman.o.stratiienko@globallogic.com>
diff --git a/.ci/.gitlab-ci-checkcommit.sh b/.ci/.gitlab-ci-checkcommit.sh
index c9c2e49..c6f7c4e 100755
--- a/.ci/.gitlab-ci-checkcommit.sh
+++ b/.ci/.gitlab-ci-checkcommit.sh
@@ -50,7 +50,7 @@
 		exit 1
 	fi
 
-	git show "$h" -- | clang-format-diff-13 -p 1 -style=file > /tmp/format-fixup.patch
+	git show "$h" -- | clang-format-diff-14 -p 1 -style=file > /tmp/format-fixup.patch
 	if [ -s  /tmp/format-fixup.patch ]; then
 		cat /tmp/format-fixup.patch >&2
 		exit 1
diff --git a/.ci/Makefile b/.ci/Makefile
index a0e4b73..581c6d9 100644
--- a/.ci/Makefile
+++ b/.ci/Makefile
@@ -2,8 +2,8 @@
 INCLUDE_DIRS := . ../libdrm/include/drm include ./.ci/android_headers ./tests/test_include
 SYSTEM_INCLUDE_DIRS := /usr/include/libdrm
 
-CLANG := clang++-13
-CLANG_TIDY := clang-tidy-13
+CLANG := clang++-14
+CLANG_TIDY := clang-tidy-14
 OUT_DIR := /tmp/drm_hwcomposer/build
 SRC_DIR := .
 
@@ -43,6 +43,7 @@
     -cppcoreguidelines-pro-type-vararg                  \
     -hicpp-vararg                                       \
     -hicpp-signed-bitwise                               \
+    -readability-identifier-length                      \
 
 TIDY_CHECKS_NORMAL :=                                   \
     $(TIDY_CHECKS_FINE)                                 \