Give entrypoint.sh executable permission

[michalkielan]

Description

Give entrypoint.sh executable permission to fix docker error.

Closes: #1479

Checklist:

• [*] I have changed the base branch to dev
• [*] I have performed a self-review of my own code
• I have commented my code in hard-to-understand areas
• I have made corresponding changes to the documentation

[yiqiangjun]

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