Cherry-pick to 7.x: Reuse configuration from the workers and bump terraform (#24184) (#24214)

[v1v]

Backports the following commits to 7.x:

• [CI] reuse configuration from the workers if possible ([CI] reuse configuration from the workers if possible #24184)
• Bump terraform dependency with arm64 support (Bump terraform dependency with arm64 support #24214)

Merge conflict solved since #20349 was not backported

Requires #24214

[botelastic]

This pull request doesn't have a Team:<team> label.

[elasticmachine]

💚 Build Succeeded

the below badges are clickable and redirect to their specific view in the CI or DOCS

Expand to view the summary

Build stats

• Build Cause: v1v commented: /test

• Start Time: 2021-02-24T17:58:47.754+0000

• Duration: 51 min 7 sec

• Commit: b1b3faf

Test stats 🧪

Test	Results
Failed	0
Passed	46616
Skipped	4981
Total	51597

Trends 🧪

💚 Flaky test report

Tests succeeded.

Expand to view the summary

Test stats 🧪

Test	Results
Failed	0
Passed	46616
Skipped	4981
Total	51597

[v1v]

/test