Bumps [encoding_c_mem](https://github.com/hsivonen/encoding_c_mem) from 0.2.5 to 0.2.6. - [Release notes](https://github.com/hsivonen/encoding_c_mem/releases) - [Commits](hsivonen/encoding_c_mem@v0.2.5...v0.2.6) Signed-off-by: dependabot-preview[bot] <support@dependabot.com>