fix: Gemfile to reduce vulnerabilities #14

Job	Run time
python 3.6 macos-11	1s
python 3.11 macos-11	1s
java 8 macos-11	1s
php 5.3 macos-11	1s
php 7.4 macos-11	1s
php 8.2 macos-11	1s
python 3.6 windows-2019	1m 35s
python 3.11 windows-2019	1m 20s
java 8 windows-2019	1m 29s
php 5.3 windows-2019	1m 46s
php 7.4 windows-2019	2m 45s
php 8.2 windows-2019	1m 24s
python 3.6 ubuntu-20.04	27s
python 3.11 ubuntu-20.04	29s
java 8 ubuntu-20.04	31s
php 5.3 ubuntu-20.04	28s
php 7.4 ubuntu-20.04	28s
php 8.2 ubuntu-20.04	33s
windows_meterpreter windows-2019	2m 12s
windows_meterpreter windows-2022	1m 33s
mettle macos-11	1s
mettle ubuntu-20.04	34s
Generate report	16s
	17m 57s

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