plugins: fix install path (#2418) #4209

Job	Run time
coverage (ubuntu-20.04)	6m 5s
alpine 3.19.0 (musl)	10m 43s
Ubuntu/Debian packaging (Ubuntu 20.04)	9m 20s
ubuntu-20.04 (package, non-mavsdk_server)	7m 57s
ubuntu-22.04 (package, non-mavsdk_server)	5m 41s
android-arm	6m 28s
linux-armv6	6m 44s
ubuntu-24.04 (package, non-mavsdk_server)	6m 44s
android-arm64	6m 41s
linux-armv6-musl	12m 47s
linux-armv7	7m 0s
linux-armv7l-musl	12m 29s
android-x86	6m 40s
linux-arm64	5m 55s
linux-arm64-musl	13m 23s
android-x86_64	6m 28s
ios	1h 23m 57s
linux-arm64-lts	5m 14s
ios_simulator_x64	6m 3s
ios_simulator_arm64	1h 21m 35s
ubuntu-20.04 (mavsdk, hunter)	4m 44s
macOS x64	38m 21s
ubuntu-20.04 (non-mavsdk_server, non-superbuild)	6m 30s
macOS arm64	19m 4s
ubuntu-24.04 (style and proto check)	1m 31s
macOS framework x64	40m 26s
ubuntu-20.04 (mavsdk_server, superbuild)	14m 20s
Windows	12m 49s
macOS framework arm64	18m 26s
ubuntu-22.04 (mavsdk_server, superbuild)	10m 41s
ubuntu-24.04 (mavsdk_server, superbuild)	12m 19s
ubuntu-24.04 (mavsdk_server, superbuild)	13m 17s
ubuntu-24.04 (mavsdk_server, superbuild)	13m 4s
iOS XCFramework	1m 33s
	8h 34m 59s

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