…ango into performance

…jango into stable/3.2.x

* chore: fix release build

Fix release build by migrating to secret manager secrets and use templated kokoro configs for docs/ and release/

* fix: fix config names

* chore: add populate secrets script

* docs: fix license

* chore: preserve original year

* chore: revert years in manually committed files

* 🦉 Updates from OwlBot

See https://github.com/googleapis/repo-automation-bots/blob/master/packages/owl-bot/README.md

* chore: update lockfile

* chore: add .kokoro/docker directory

Co-authored-by: Owl Bot <gcf-owl-bot[bot]@users.noreply.github.com>

* feat: Added support for check constraint

* fix: change decimal out of scale ProgramingError to ValueError

* fix: skip check_constraints tests when running on emmulator

* fix: remove check constraint for emulator

… but no support for unsigned data type (googleapis#683)

* performance files

* test_benchmark

* performance testing changes

* changes in benchmark performance for prod

* changes to number of runs

* adding comments

* linting changes

* changes for 3.2

* Revert "changes for 3.2"

This reverts commit 488035c.

* adding licence

Release-As: 2.2.1b2

* chore: release 2.2.1b2

* Updated CHANGELOG.md

Corrected the change log msg.

Co-authored-by: release-please[bot] <55107282+release-please[bot]@users.noreply.github.com>
Co-authored-by: Vikash Singh <3116482+vi3k6i5@users.noreply.github.com>

* fix: Bump version number after 2.2.1b2 release

* Update setup.py

Current release is beta so updating the same in setup.py

Release-As: 2.2.1b3

* chore: release 2.2.1b3

* Updated CHANGELOG.md

Co-authored-by: release-please[bot] <55107282+release-please[bot]@users.noreply.github.com>
Co-authored-by: Vikash Singh <3116482+vi3k6i5@users.noreply.github.com>

* chore: release 2.2.1b3

Release-As: 2.2.1b3

* fix: Bump version number after 2.2.1b3 release

* fix: add test samples script and related kokoro files

* fix: correct repo name from python-spanner to python-spanner-django

* fix: correct license from Apache to BSD style

* docs: update docs to show decimal field support and check constraints but no support for unsigned data type

* docs: linked changelog correctly

* docs: fix doc links for sample examples

* fix: skip test cursor_executemany_with_empty_params_list as spanner support is not there

* chore: migrate to main branch

* 🦉 Updates from OwlBot

See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md

* use latest post processor image

* remove obsolete replacements in owlbot.py

* update post processor image

Co-authored-by: Owl Bot <gcf-owl-bot[bot]@users.noreply.github.com>
Co-authored-by: Anthonios Partheniou <partheniou@google.com>

…to stable/3.2.x

…jango into stable/3.2.x

… django 3.2