fuechr/Add automated go version extraction for e2e tests with fuse

[chrisThePattyEater]

What type of PR is this?

Uncomment only one /kind <> line, hit enter to put that in a new line, and remove leading whitespaces from that line:

/kind api-change

/kind bug

/kind cleanup
/kind design
/kind documentation
/kind failing-test
/kind feature
/kind flake

What this PR does / why we need it:
Adds additional step during test to parse '/gcsfuse/tools/cd_scripts/e2e_test.sh' for the version of go being used by fuse teams integration tests and uses that version to run

This has been causing issues for the team while running fuse teams integrations tests because whenever fuse team updates their version of go and our versions are not in sync, integration tests fail causing us to have to manually upgrade the version in the command that runs those integration test as seen in 11e2f8e. This happens about once a month

Which issue(s) this PR fixes:
Fixes # https://buganizer.corp.google.com/issues/379879910

Special notes for your reviewer:
n/a
Does this PR introduce a user-facing change?:
n/a

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[hime]

Thanks for the detailed description! Could you attach the steps taken to verify this fix? (e.g. results of running the testsuite locally with this change)