fluent-bit: update to 5.0.8, adopt maintainer, fix musl startup segfault

Update 4.2.0 -> 5.0.8 and add me as maintainer.

fluent-bit segfaulted at startup on every musl target, failing CI for any
PR touching this feed (all versions). Upstream's C-TLS CMake probe calls the
glibc-only __tls_get_addr(), which fails to link on musl, so it falls back to
a pthread_key_t path that calls pthread_getspecific() before
pthread_key_create(). musl's getspecific is an unchecked self->tsd[key], so
the NULL TSD array is dereferenced; glibc bounds-checks and returns NULL,
hiding the bug there. Force -DFLB_HAVE_C_TLS:BOOL=On to keep the native
__thread path (fully supported on musl). Verified on x86_64: starts and
passes the generic test instead of crashing.

Signed-off-by: Alexandru Ardelean <alex@shruggie.ro>

Author: commodo

admin/fluent-bit/Makefile

@@ -1,14 +1,15 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=fluent-bit
-PKG_VERSION:=4.2.0
-PKG_RELEASE:=2
+PKG_VERSION:=5.0.8
+PKG_RELEASE:=1
 
 PKG_SOURCE_PROTO:=git
 PKG_SOURCE_URL:=https://github.com/fluent/fluent-bit.git
 PKG_SOURCE_VERSION=v$(PKG_VERSION)
-PKG_MIRROR_HASH:=cad2d94cf7a720a3910c781f80187e2c399aa8acbfa1046aa7445a4d1495fafd
+PKG_MIRROR_HASH:=e512206f301abee2f326a62faeaae258d1a2b3a5d698d6c4dc45909d0a9e0dca
 
+PKG_MAINTAINER:=Alexandru Ardelean <ardeleanalex@gmail.com>
 PKG_LICENSE:=Apache-2.0
 PKG_LICENSE_FILES:=LICENSE
 PKG_CPE_ID:=cpe:/a:treasuredata:fluent_bit
@@ -36,6 +37,8 @@ endef
 
 TARGET_LDFLAGS +=-lfts -latomic
 
+# Force native __thread TLS: upstream's C-TLS probe calls glibc-only
+# __tls_get_addr() and fails on musl, falling back to a crashing pthread_key path.
 CMAKE_OPTIONS+= \
 	-DFLB_RELEASE=Yes \
 	-DEXCLUDE_FROM_ALL=true \
@@ -46,7 +49,8 @@ CMAKE_OPTIONS+= \
 	-DFLB_LUAJIT=No \
 	-DWITH_SASL=No \
 	-DWITH_ZLIB=No \
-	-DWITH_ZSTD=No
+	-DWITH_ZSTD=No \
+	-DFLB_HAVE_C_TLS:BOOL=On
 
 define Package/fluent-bit/install
 	$(INSTALL_DIR) $(1)/usr/sbin