tools: exclude non-project files from go version consistency lint check

[dstadulis]

Replaces #775
@ffranr noticed lint check (Go versions consistency check) was examining the local vendor directory.
This directory contains irrelevant project dependency files, which shouldn't be linted.
PR adds exclusion filters to remove directories from being linted.

[dstadulis]

Testing:

$ exclusionDirectories=("./vendor" "adfl")
# Create `find` parameters to exclude directories
findExclusion=( "${exclusionDirectories[@]/#/"-not -path" }" )
echo $findExclusion
-not -path ./vendor -not -path adfl

$ find . -type f $findExclusion -name "*.Dockerfile" -o -name "Dockerfile"
./tools/Dockerfile
./taprpc/Dockerfile
./Dockerfile
./itest/loadtest/Dockerfile
./dev.Dockerfile
./make/builder.Dockerfile

[ffranr]

Why does this PR replace #775

[dstadulis]

Why does [#776] PR replace #775

Addresses guggero request to exclude with find

[ffranr]

@dstadulis I've revised #775 , which also includes changes to the yaml linter that we need. I've requested your review there.

[dstadulis]

Closing and continuing commentary in #755