nanopb: upgrade 0.4.8 -> 0.4.9

Changelog:
==========
- Fix problems with enum intsize introduced in 0.4.8
- Fix Python pkg_resources deprecation
- Add option to discard deprecated fields
- Use fallback_type when breaking circular dependencies
- Discard autogenerated map entry types if the field is skipped
- Use pb_byte_t = uint8_t when available
- Add enum_validate option
- Add check_return attribute for IAR compiler
- Add label_override field option
- Add Zephyr module specification
- Add Apple privacy manifest
- Bazel rule improvements, including bzlmod migration
- CMake build rule improvements
- Improve C++ descriptors
- Test case improvements
- Update dependency package versions
- Documentation improvements

Signed-off-by: Wang Mingyu <wangmy@fujitsu.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>

meta-oe/dynamic-layers/meta-python/recipes-devtools/nanopb/nanopb.inc

@@ -3,7 +3,7 @@ LICENSE="Zlib"
 LIC_FILES_CHKSUM = "file://LICENSE.txt;md5=9db4b73a55a3994384112efcdb37c01f"
 
 SRC_URI = "git://github.com/nanopb/nanopb.git;branch=master;protocol=https"
-SRCREV = "6cfe48d6f1593f8fa5c0f90437f5e6522587745e"
+SRCREV = "98bf4db69897b53434f3d0ba72e0a3ab1a902824"
 
 S = "${WORKDIR}/git"