[GCP] Add compute ingest pipeline

[gpop63]

What does this PR do?

Adds compute data stream ingest pipeline.

Checklist

• I have reviewed tips for building integrations and this pull request is aligned with them.
• I have verified that all data streams collect metrics or logs.
• I have added an entry to my package's changelog.yml file.
• I have verified that Kibana version constraints are current according to guidelines.

Author's Checklist

• [ ]

How to test this PR locally

Related issues

• Closes gcp.compute data stream does not collect data in correct namespace #4342

Screenshots

[elasticmachine]

💚 Build Succeeded

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Build stats

• Start Time: 2022-09-30T10:08:23.710+0000

• Duration: 19 min 4 sec

Test stats 🧪

Test	Results
Failed	0
Passed	82
Skipped	0
Total	82

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🌐 Coverage report

Name	Metrics % (covered/total)	Diff
Packages	100.0% (5/5)	💚
Files	100.0% (5/5)	💚 2.792
Classes	100.0% (5/5)	💚 2.792
Methods	90.816% (89/98)	👍 1.222
Lines	95.752% (1375/1436)	👍 4.217
Conditionals	100.0% (0/0)	💚

[elasticmachine]

🚀 Benchmarks report

Package gcp 👍(0) 💚(0) 💔(5)

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Data stream	Previous EPS	New EPS	Diff (%)	Result
audit	1915.71	1584.79	-330.92 (-17.27%)	💔
dns	2739.73	2044.99	-694.74 (-25.36%)	💔
firewall	3174.6	1792.11	-1382.49 (-43.55%)	💔
loadbalancing_logs	4878.05	3610.11	-1267.94 (-25.99%)	💔
vpcflow	4166.67	2283.11	-1883.56 (-45.21%)	💔

To see the full report comment with /test benchmark fullreport

[endorama]

tested and confirmed data points arrive under gcp.compute