Modified dataflow templates parameter description

[rajkgupt]

Modified parameters for Stream_GCS_Text_to_BigQuery_Flex and Cloud_PubSub_to_MongoDB templates

[VeronicaWasson]

Stream_GCS_Text_to_BigQuery_Flex

I think this is actually for the batch template? i.e. https://cloud.google.com/dataflow/docs/guides/templates/provided/cloud-storage-to-bigquery

In the docs, the parameter descriptions are inconsistent between the streaming and batch versions of the template. But I don't think it matters which version we pick.

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 40.18%. Comparing base (45f4eb8) to head (72544b9). Report is 2 commits behind head on main.

:exclamation: Current head 72544b9 differs from pull request most recent head 25037f0

Please upload reports for the commit 25037f0 to get more accurate results.

Additional details and impacted files

@@             Coverage Diff              @@
##               main    #1510      +/-   ##
============================================
- Coverage     40.93%   40.18%   -0.75%     
+ Complexity     2815     2793      -22     
============================================
  Files           740      737       -3     
  Lines         42875    42768     -107     
  Branches       4585     4578       -7     
============================================
- Hits          17549    17187     -362     
- Misses        23824    24102     +278     
+ Partials       1502     1479      -23     

Components	Coverage Δ
spanner-templates	56.82% <ø> (-2.99%)	:arrow_down:
spanner-import-export	65.59% <ø> (-0.03%)	:arrow_down:
spanner-live-forward-migration	63.17% <ø> (-10.42%)	:arrow_down:
spanner-live-reverse-replication	42.95% <ø> (-5.57%)	:arrow_down:
spanner-bulk-migration	69.97% <ø> (-7.73%)	:arrow_down:

Files	Coverage Δ
.../cloud/teleport/v2/templates/TextIOToBigQuery.java	68.00% <ø> (ø)
...teleport/v2/templates/TextToBigQueryStreaming.java	15.45% <ø> (ø)
...e/cloud/teleport/v2/templates/PubSubToMongoDB.java	34.84% <ø> (ø)

... and 40 files with indirect coverage changes