Use BigQuery client project consistently

[regadas]

Fixes #2994
Fixes #2928, It will allow compilation without projectId in the spec. However, it must be defined either through -Dbigquery.project, env or .config/gcloud

[codecov]

Codecov Report

Merging #2995 into master will decrease coverage by 2.60%.
The diff coverage is 0.00%.

@@            Coverage Diff             @@
##           master    #2995      +/-   ##
==========================================
- Coverage   72.67%   70.06%   -2.61%     
==========================================
  Files         225      225              
  Lines        7490     7489       -1     
  Branches      322      333      +11     
==========================================
- Hits         5443     5247     -196     
- Misses       2047     2242     +195     

Impacted Files	Coverage Δ
...la/com/spotify/scio/bigquery/client/TableOps.scala	0.00% <0.00%> (-25.75%)	⬇️
...scala/com/spotify/scio/bigquery/client/Cache.scala	0.00% <0.00%> (-74.08%)	⬇️
.../spotify/scio/bigquery/client/BigQueryConfig.scala	0.00% <0.00%> (-70.59%)	⬇️
.../spotify/scio/bigquery/BigQueryPartitionUtil.scala	0.00% <0.00%> (-52.50%)	⬇️
...scala/com/spotify/scio/bigquery/BigQueryUtil.scala	50.00% <0.00%> (-50.00%)	⬇️
...otify/scio/bigquery/syntax/ScioContextSyntax.scala	19.35% <0.00%> (-41.94%)	⬇️
...la/com/spotify/scio/bigquery/client/QueryOps.scala	0.73% <0.00%> (-39.71%)	⬇️
.../scala/com/spotify/scio/bigquery/StorageUtil.scala	0.00% <0.00%> (-36.85%)	⬇️
...com/spotify/scio/bigquery/types/BigQueryType.scala	58.33% <0.00%> (-29.17%)	⬇️
...com/spotify/scio/bigquery/types/TypeProvider.scala	52.11% <0.00%> (-22.54%)	⬇️
... and 5 more

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update fbf3267...d4e4d34. Read the comment docs.