refactor(build): Update to recent CMake FindPython #1087

Job	Run time
Debug Build & Unit Tests (gcc)	3m 8s
Debug Build & Unit Tests (gcc, 32bit)	3m 9s
Debug Build & Unit Tests without Subscriptions (gcc)	1m 23s
Debug Build & Unit Tests with Diagnostics (gcc)	2m 44s
Debug Build & Unit Tests with multithreading (gcc)	2m 7s
Debug Build & Unit Tests with Alarms&Conditions (gcc)	3m 23s
Debug Build & Unit Tests (clang)	3m 58s
Debug Build & Unit Tests (tcc)	2m 28s
Encryption (MbedTLS) Build & Unit Tests (gcc)	2m 14s
PubSub Encryption (MbedTLS) Build & Unit Tests (gcc)	2m 53s
PubSub SKS Build & Unit Tests (gcc)	3m 40s
Encryption (OpenSSL) Build & Unit Tests (gcc)	2m 13s
Encryption (LibreSSL) Build & Unit Tests (gcc)	4m 32s
TPM Tool Build	2m 16s
Release Build	1m 8s
Amalgamation Build	49s
Amalgamation Build with Multithreading	55s
Valgrind Build & Unit Tests with MbedTLS (gcc)	11m 26s
Valgrind Build & Unit Tests with OpenSSL (gcc)	38m 52s
Valgrind Examples with MbedTLS (gcc)	59m 30s
Valgrind Examples with OpenSSL (gcc)	59m 31s
Clang Static Analyzer	3m 1s
Build All Companion Specifications	9m 52s
	3h 45m 12s

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