Disable avro read/write test on DB Connect (#2666)
Disable avro read/write test on DB Connect (#2666)

* dummy change

Signed-off-by: Andy Zhang <103ecd5f8ea42c3712e52888683784baef20759a@databricks.com>

* do not test avro on DB Connect

Signed-off-by: Andy Zhang <103ecd5f8ea42c3712e52888683784baef20759a@databricks.com>

* remove dummy var

Signed-off-by: Andy Zhang <103ecd5f8ea42c3712e52888683784baef20759a@databricks.com>

* empty commit

Signed-off-by: Andy Zhang <103ecd5f8ea42c3712e52888683784baef20759a@databricks.com>

* Update tests/testthat/test-read-write.R

Co-authored-by: Yitao Li <54a0a11f283c14320943e0b578c203658a3a4396@10xeng.ca>
Signed-off-by: Andy Zhang <103ecd5f8ea42c3712e52888683784baef20759a@databricks.com>

Co-authored-by: Yitao Li <54a0a11f283c14320943e0b578c203658a3a4396@10xeng.ca>
rstudio/sparklyr,rstudio/sparklyr,rstudio/sparklyr,rstudio/sparklyr