chore(deps): add missing thecodingmachine/safe dependency

[simPod]

• use Safe\pcntl_signal
• drop Safe\sprintf

[codecov]

Codecov Report

Merging #55 (fc4808e) into master (80853e9) will decrease coverage by 2.12%.
The diff coverage is n/a.

@@             Coverage Diff              @@
##             master      #55      +/-   ##
============================================
- Coverage     81.34%   79.22%   -2.13%     
  Complexity       55       55              
============================================
  Files             8        8              
  Lines           193      154      -39     
============================================
- Hits            157      122      -35     
+ Misses           36       32       -4     

Impacted Files	Coverage Δ
.../Clients/Consumer/Exception/IncompatibleStatus.php	100.00% <ø> (ø)
src/Clients/Consumer/KafkaConsumer.php	64.93% <ø> (-5.07%)	⬇️
src/Clients/Consumer/WithSignalControl.php	92.85% <ø> (+3.96%)	⬆️
src/Clients/Producer/KafkaProducer.php	82.60% <ø> (-3.11%)	⬇️
src/Common/Config.php	100.00% <0.00%> (ø)
src/Clients/Consumer/BatchTime.php	100.00% <0.00%> (ø)
src/Clients/Consumer/ConsumerRecords.php	100.00% <0.00%> (ø)

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