Add test/tryCatch for connecting to network drives

[jonbry]

We have tryCatch for connecting to other databases, but nothing for connecting to network drives:

marsMaintenanceScripts/10_update_wic_tables/update_wic_tables_V2.0.Rmd

Line 460 in 180c1d9

pwd_parcels_sf <- st_read(dsn = "\\\\pwdoows\\oows\\Watershed Sciences\\GSI Monitoring\\09 GIS Data\\PWD_PARCELS ", layer = "PWD_PARCELS")%>%

Since this can cause the script to fail, we should probably either test to make sure we can connect or wrap it in a tryCatch.