refactor: use maintained gopacket fork

[romshark]

google/gopacket is no longer maintained by Google since August 2020.
See issue: google/gopacket#1016.
I propose we switch to the new actively maintained fork: https://github.com/gopacket/gopacket.

The most prominent orgs on GitHub already depending on the new fork appear to be github.com/apache and github.com/usnistgov which gives me confidence.

[jiceatscion]

This change is 

[jiceatscion]

I did not review all 110 files. I assume that all the changes consist in changing the import path. You need to revert all the platform-specific license changes.

Reviewed 104 of 112 files at r1, 8 of 10 files at r2, all commit messages.
Reviewable status: complete! all files reviewed, all discussions resolved (waiting on @romshark)

[jiceatscion]

Reviewable status: all files reviewed, 1 unresolved discussion (waiting on @romshark)

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-- commits line 8 at r2:
Adding random objection to avoid being the sole approver.

[oncilla]

Reviewed 104 of 112 files at r1, 8 of 10 files at r2, all commit messages.
Reviewable status: all files reviewed, 2 unresolved discussions (waiting on @jiceatscion and @romshark)

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-- commits line 8 at r2:

Previously, jiceatscion wrote…

Adding random objection to avoid being the sole approver.

Second pair of 👀

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dist/test/BUILD.bazel line 29 at r2 (raw file):

    tags = [
        "exclusive",
        # "integration",

This appears to be unexpected.

[oncilla]

Reviewed 1 of 1 files at r3.
Reviewable status: all files reviewed (commit messages unreviewed), 2 unresolved discussions (waiting on @jiceatscion and @romshark)

[oncilla]

Reviewed all commit messages.
Reviewable status: all files reviewed, 1 unresolved discussion (waiting on @jiceatscion and @romshark)

[jiceatscion]

Reviewed all commit messages.
Reviewable status: complete! all files reviewed, all discussions resolved (waiting on @romshark)

[oncilla]

Reviewed 9 of 11 files at r4, all commit messages.
Reviewable status: 111 of 112 files reviewed, all discussions resolved (waiting on @jiceatscion and @romshark)

[oncilla]

Reviewed 1 of 11 files at r4.
Reviewable status: complete! all files reviewed, all discussions resolved (waiting on @romshark)