feat: disable cgo

[kruskall]

build the extension with cgo disabled, to ensure there are
no glibc/ABI compatibility issues between the build host and
the target Lambda execution environment.

Closes #290

[apmmachine]

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• Start Time: 2022-08-25T12:45:22.997+0000

• Duration: 8 min 49 sec

Test stats 🧪

Test	Results
Failed	0
Passed	160
Skipped	2
Total	162

🤖 GitHub comments

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[axw]

Thanks :)

[felixbarny]

Did this have an impact on the size of the binary? If so, what's the before and after? Thanks!

[axw]

There's a small reduction in size.

Before:

-rwxrwxr-x 1 andrew andrew  11M Aug 24 17:01 bin/extensions/apm-lambda-extension
-rw-rw-r-- 1 andrew andrew 5.5M Aug 26 17:40 bin/extension.zip

After:

-rwxrwxr-x 1 andrew andrew  10M Aug 26 07:51 bin/extensions/apm-lambda-extension
-rw-rw-r-- 1 andrew andrew 5.4M Aug 26 17:40 bin/extension.zip