Migrate fixed_point32 to uq32_32 #76622

Job	Run time
diff	9s
license-check	4m 17s
test-extra (ubuntu-ghcloud)	10m 34s
test (ubuntu-ghcloud)	18m 58s
simtest	16m 11s
move-auto-formatter-ci-test	0s
windows-build (windows-ghcloud)	8m 51s
cargo-deny (advisories, licenses, bans, ...)	35s
clippy	3m 9s
move-test	0s
rustfmt	19s
test-extra	0s
test	0s
cutting a new execution layer	1m 22s
	1h 4m 25s

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