Fixed the install script - again

[hugsy]

Description

Make it use the latest stable release
Currently the ref was empty (was spotted in the screenshot in #1049)

Checklist

• My code follows the code style of this project.
• My change includes a change to the documentation, if required.
• If my change adds new code, adequate tests have been added.
• I have read and agree to the CONTRIBUTING document.

[github-actions]

🤖 Coverage update for b6f3f68 🟢

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Commit	219d46f	b6f3f68
Score	71.7764%	71.7764% (0)

[github-actions]

🤖 Coverage update for b6f3f68 🟢

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Commit	219d46f	b6f3f68
Score	71.7764%	71.7764% (0)

[github-actions]

🤖 Coverage update for 55a7524 🟢

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Commit	219d46f	55a7524
Score	71.7764%	71.7959% (0.0195)

[github-actions]

🤖 Coverage update for 55a7524 🟢

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Commit	219d46f	55a7524
Score	71.7764%	71.7764% (0)

[github-actions]

🤖 Coverage update for cf2f07c 🟢

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Commit	219d46f	cf2f07c
Score	71.7764%	71.7764% (0)

[github-actions]

🤖 Coverage update for cf2f07c 🟢

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Commit	219d46f	cf2f07c
Score	71.7764%	71.7764% (0)

[github-actions]

🤖 Coverage update for a344d56 🟢

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Commit	219d46f	a344d56
Score	71.7764%	71.7764% (0)

[github-actions]

🤖 Coverage update for a344d56 🟢

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Commit	219d46f	a344d56
Score	71.7764%	71.7764% (0)

[Grazfather]

Why did you add get-pip.py?

[hugsy]

Why did you add get-pip.py?

To test gef-extras.sh, but it's a bit tricky to test

[github-actions]

🤖 Coverage update for ab6beb5 🔴

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Commit	219d46f	ab6beb5
Score	71.5816%	71.5623% (-0.0193)

[github-actions]

🤖 Coverage update for ab6beb5 🔴

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Commit	219d46f	ab6beb5
Score	71.5816%	71.5623% (-0.0193)

[Grazfather]

Tested on a clean machine. Works as except.