Bump version to 2.25.0 (#1064)

Add trace support for OTLP (#1017)

* Add a traces section to the config
* Make -update work when the golden directory is completely missing
* Generate receiver components once even if included in more than one pipeline
* Make OTel config generation generic as to data type
* Add a bunch of valid and invalid test cases

Fall back to unqualified mkswap (#979)

Some platforms, e.g. bionic, have mkswap under a different folder.
We haven't had any problems running mkswap unqualified on bionic, or
anywhere outside of SLES really, so add a fallback to the unqualified
version of the command if the absolute version fails.

Revert #867 (#883)

* Revert "Decrease fluent-bit buffer_max_size to 2M for smaller outgoing requests. (#867)"

This reverts commit f30948b.

* Update newer goldens after reverting #867

Install varnish on centos7 (#874)

* Install varnish on centos7

* Remove comment from install script in centos

apps/postgresql: Receiver Enhancements (Metric Additions) (#804)

* test submodule update for postgres featuregate

* add resource attribute flattening

* re-add representative

* update submodule and integration test to generate more metrics

* clean up generated metadata.yaml

* try integration tests again

* add table attribute back to workload.googleapis.com/postgresql.blocks_read

* label fixes

* try to fix sles int test

* try one more time

* add to docs

* update operations collector

* don't modify service files

* update postgres SLES 15 install

* update postgres SLES 15 install to not look for libs

* fix modification of postgresql.conf

* update to use exercise

* supply passwords to exercise

* remove docs updates

Update version to 2.19.0 and adjust template around version bump. (#810)

Update public_url in metadata.yaml files for integrations released in…

… 2.18.1. (#735)

Roll back Couchbase PRs. (#716)

MSSQL: Fix Integration Test (#694)

Fix data types on some of the metrics