Fix components permissions on build

[michalpristas]

What does this PR do?

Endpoint and fleet server permissions were incorrectly set.
This PR fixes that to be 755 instead of 660

This PR also makes EXTERNAL true by default so each dependency is fetched on build for packaging when using mage dev:package
EXTERNAL is not set when EXTERNAL was already provided or DROP PATH is used.

When using EXTERNAL all dependencies (incl fleet-server, apm, endpoint) are fetched compared to the list of beats from beats repo when used without this flag. This is to be as close to CI package as possible.

Why is it important?

Fixes: #1712

Checklist

• My code follows the style guidelines of this project
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• I have made corresponding change to the default configuration files
• I have added tests that prove my fix is effective or that my feature works
• I have added an entry in CHANGELOG.next.asciidoc or CHANGELOG-developer.next.asciidoc.

[mergify]

This pull request does not have a backport label. Could you fix it @michalpristas? 🙏
To fixup this pull request, you need to add the backport labels for the needed
branches, such as:

• backport-v./d./d./d is the label to automatically backport to the 8./d branch. /d is the digit

NOTE: backport-skip has been added to this pull request.

[elasticmachine]

💔 Tests Failed

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Build stats

• Start Time: 2022-11-14T15:54:28.405+0000

• Duration: 45 min 55 sec

Test stats 🧪

Test	Results
Failed	2
Passed	4479
Skipped	13
Total	4494

Test errors

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Test / Matrix - PLATFORM = 'windows-2022 && windows-immutable' / Test / TestToComponents/Complex_w/_shipper – github.com/elastic/elastic-agent/pkg/component

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 Failed 

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 === RUN   TestToComponents/Complex_w/_shipper
    component_test.go:1504: 
        	Error Trace:	component_test.go:1504
        	Error:      	Not equal: 
        	            	expected: []component.Unit{component.Unit{ID:"filestream-default", Type:0, LogLevel:2, Config:(*proto.UnitExpectedConfig)(0xc000280120), Err:error(nil)}, component.Unit{ID:"log-default", Type:0, LogLevel:2, Config:(*proto.UnitExpectedConfig)(0xc0002801b0), Err:error(nil)}, component.Unit{ID:"shipper-default", Type:1, LogLevel:2, Config:(*proto.UnitExpectedConfig)(0xc000280240), Err:error(nil)}}
        	            	actual  : []component.Unit{component.Unit{ID:"filestream-default", Type:0, LogLevel:2, Config:(*proto.UnitExpectedConfig)(0xc0003bbd40), Err:error(nil)}, component.Unit{ID:"log-default", Type:0, LogLevel:2, Config:(*proto.UnitExpectedConfig)(0xc0003bbc20), Err:error(nil)}, component.Unit{ID:"shipper-default", Type:1, LogLevel:2, Config:(*proto.UnitExpectedConfig)(0xc0003bbe60), Err:error(nil)}}
        	            	
        	            	Diff:
        	Test:       	TestToComponents/Complex_w/_shipper
    --- FAIL: TestToComponents/Complex_w/_shipper (0.02s)
 

Test / Matrix - PLATFORM = 'windows-2022 && windows-immutable' / Test / TestToComponents – github.com/elastic/elastic-agent/pkg/component

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 Failed 

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 === RUN   TestToComponents
--- FAIL: TestToComponents (0.39s)
 

Steps errors

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Go package

• Took 22 min 25 sec . View more details here
• Description: mage package ironbank

Go unitTest

• Took 2 min 23 sec . View more details here
• Description: mage unitTest

Checks if running on a Unix-like node

• Took 0 min 0 sec . View more details here
• Description: script returned exit code 1

🐛 Flaky test report

❕ There are test failures but not known flaky tests.

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Genuine test errors

💔 There are test failures but not known flaky tests, most likely a genuine test failure.

• Name: Test / Matrix - PLATFORM = 'windows-2022 && windows-immutable' / Test / TestToComponents/Complex_w/_shipper – github.com/elastic/elastic-agent/pkg/component
• Name: Test / Matrix - PLATFORM = 'windows-2022 && windows-immutable' / Test / TestToComponents – github.com/elastic/elastic-agent/pkg/component

🤖 GitHub comments

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[elasticmachine]

🌐 Coverage report

Name	Metrics % (covered/total)	Diff
Packages	98.305% (58/59)	👍
Files	71.066% (140/197)	👍
Classes	70.557% (266/377)	👍
Methods	54.834% (794/1448)	👍
Lines	40.292% (8573/21277)	👍 0.009
Conditionals	100.0% (0/0)	💚

[michalpristas]

Jenkins test this please

[michalpristas]

Jenkins test this please

[michalpristas]

test failures not related

[olegsu]

Cloudbeat v2 alignment was done here.
Anything else we need to do to remove this comment?

[cmacknz]

I don't think there is anything blocking inclusion of Cloudbeat here, easiest fix is for you to submit a PR :)