Refactor (entrypoint): Move scripts to project root directory #406

Job	Run time
test-powershell-5_1-windows-2019	1m 41s
test-powershell-5_1-windows-2022	1m 59s
test-powershell-6_2-container	18s
test-powershell-6_1-container	17s
test-powershell-7_0-container	15s
test-powershell-7_1-container	16s
test-powershell-7_2-container	17s
test-powershell-7_3-container	15s
test-powershell-7_4-container	20s
test-powershell-core-macos	27s
test-powershell-core-windows	52s
test-powershell-core-linux	36s
release	12s
	7m 45s

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