debian: update changelog with changes made for Debian Backports #154

Job	Run time
Build and test with ASAN enabled	1m 36s
Build and test with clang	1m 11s
Build and test with gcc	1m 1s
Build and test on macOS	29s
Build and test with gcc -m32	1m 13s
Cross-compile for Android (aarch64)	34s
Build and test with UBSAN enabled	1m 56s
Cross-compile for Android (armv7a)	36s
Build mke2fs on Windows with mingw32	1m 59s
Cross-compile for Android (i686)	36s
Build mke2fs on Windows with mingw64	1m 54s
Cross-compile for Android (x86_64)	39s
	13m 44s

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