Prepare for v5.0.0 release (#350)

• Prepare for v5.0.0 release

Signed-off-by: NilashishC <nilashishchakraborty8@gmail.com>

• Update galaxy version

Signed-off-by: NilashishC <nilashishchakraborty8@gmail.com>

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Signed-off-by: NilashishC <nilashishchakraborty8@gmail.com>