fix(tests): Fix use of deterministic clock in unit tests #1083

Job	Run time
Debug Build & Unit Tests (gcc)	2m 48s
Debug Build & Unit Tests (gcc, 32bit)	3m 17s
Debug Build & Unit Tests without Subscriptions (gcc)	1m 28s
Debug Build & Unit Tests with Diagnostics (gcc)	2m 42s
Debug Build & Unit Tests with multithreading (gcc)	1m 59s
Debug Build & Unit Tests with Alarms&Conditions (gcc)	2m 8s
Debug Build & Unit Tests (clang)	4m 16s
Debug Build & Unit Tests (tcc)	2m 11s
Encryption (MbedTLS) Build & Unit Tests (gcc)	2m 20s
PubSub Encryption (MbedTLS) Build & Unit Tests (gcc)	2m 49s
PubSub SKS Build & Unit Tests (gcc)	3m 14s
Encryption (OpenSSL) Build & Unit Tests (gcc)	2m 5s
Encryption (LibreSSL) Build & Unit Tests (gcc)	4m 47s
TPM Tool Build	2m 5s
Release Build	1m 12s
Amalgamation Build	37s
Amalgamation Build with Multithreading	38s
Valgrind Build & Unit Tests with MbedTLS (gcc)	37m 5s
Valgrind Build & Unit Tests with OpenSSL (gcc)	12m 10s
Valgrind Examples with MbedTLS (gcc)	2m 8s
Valgrind Examples with OpenSSL (gcc)	2m 1s
Clang Static Analyzer	3m 3s
Build All Companion Specifications	9m 3s
	1h 46m 6s

Provide feedback