build: add "api" to api/soname related versions

Refs #241, Closes #255.
21 jobs for cfl_ac in 5 minutes and 59 seconds (queued for 1 second)
Status Job ID Name Coverage
  Style
passed #263294
amd64 debian
style-check

00:00:22

 
  Build
passed #263295
amd64 debian
build-debian

00:00:40

passed #263303
debian aarch64
build-debian-aarch64

00:01:25

passed #263304
debian aarch64
build-debian-aarch64-clang-5

00:01:18

passed #263307
debian armv7
build-debian-armv7

00:01:27

passed #263308
debian armv7
build-debian-armv7-clang-5

00:01:09

passed #263296
amd64 debian
build-debian-static

00:00:38

passed #263306
debian aarch64
build-debian-werror

00:00:33

passed #263297
amd64 debian
build-debian32

00:00:32

passed #263305
macos
build-macos

00:00:31

passed #263309
amd64 debian allowed to fail
build-ubuntu-snap

00:00:42

passed #263301
amd64 debian
build-win-arm32

00:00:31

passed #263302
amd64 debian
build-win-arm64

00:00:35

passed #263298
amd64 debian
build-win32

00:00:40

passed #263299
amd64 debian
build-win32-unaligned-stack

00:00:35

passed #263300
amd64 debian
build-win64

00:00:43

 
  Test
passed #263310
amd64 debian
test-debian

00:00:46

passed #263311
amd64 debian
test-debian-asan

00:02:14

passed #263312
amd64 debian
test-debian-msan

00:01:10

passed #263313
amd64 debian
test-debian-ubsan

00:01:33

passed #263314
amd64 debian
test-win64

00:00:47