Update the Changelog for version 0.3.30 #5804

Job	Run time
cross_build (alpha, alpha-linux-gnu, TARGET=EV4)	2m 45s
cross_build (mipsel, mipsel-linux-gnu, TARGET=MIPS1004K)	3m 20s
cross_build (mips64el, mips64el-linux-gnuabi64, DYNAMIC_ARCH=1 TARGET=GENERIC)	4m 0s
cross_build (riscv64, riscv64-linux-gnu, TARGET=RISCV64_GENERIC)	2m 55s
msys2 (UCRT64, int32, Release)	1h 39m 46s
msys2 (CLANG64, int32, Release)	1h 13m 37s
msys2 (CLANG64, int64, Release)	17m 1s
msys2 (UCRT64, int32, None, mingw-w64-ucrt-x86_64, fc)	16m 9s
build (ubuntu-latest, gfortran, cmake)	45m 25s
build (ubuntu-latest, gfortran, make)	21m 9s
build (macos-latest, gfortran, cmake)	13m 51s
build (macos-latest, gfortran, make)	11m 55s
msys2 (UCRT64, int64, Release)	1h 43m 51s
neoverse_build	7m 54s
msys2 (MINGW32, int32, Release)	17m 1s
build (ubuntu-latest, flang, make)	17m 59s
build (ubuntu-latest, flang, cmake)	43m 28s
	8h 22m 6s

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