dbt-materialize: release v1.8.3 (#28372)

### Motivation

Release dbt-materialize v1.8.3 to pick up
#28138 (review)

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### Checklist

- [ ] This PR has adequate test coverage / QA involvement has been duly
considered. ([trigger-ci for additional test/nightly
runs](https://trigger-ci.dev.materialize.com/))
- [ ] This PR has an associated up-to-date [design
doc](https://github.com/MaterializeInc/materialize/blob/main/doc/developer/design/README.md),
is a design doc
([template](https://github.com/MaterializeInc/materialize/blob/main/doc/developer/design/00000000_template.md)),
or is sufficiently small to not require a design.
  <!-- Reference the design in the description. -->
- [ ] If this PR evolves [an existing `$T ⇔ Proto$T`
mapping](https://github.com/MaterializeInc/materialize/blob/main/doc/developer/command-and-response-binary-encoding.md)
(possibly in a backwards-incompatible way), then it is tagged with a
`T-proto` label.
- [ ] If this PR will require changes to cloud orchestration or tests,
there is a companion cloud PR to account for those changes that is
tagged with the release-blocker label
([example](MaterializeInc/cloud#5021)).
<!-- Ask in #team-cloud on Slack if you need help preparing the cloud
PR. -->
- [ ] This PR includes the following [user-facing behavior
changes](https://github.com/MaterializeInc/materialize/blob/main/doc/developer/guide-changes.md#what-changes-require-a-release-note):
- <!-- Add release notes here or explicitly state that there are no
user-facing behavior changes. -->

Author: sjwiesman

misc/dbt-materialize/CHANGELOG.md

@@ -1,6 +1,6 @@
 # dbt-materialize Changelog
 
-## Unreleased
+## 1.8.3 - 2024-07-19
 
 * Enable cross-database references ([#27686](https://github.com/MaterializeInc/materialize/pull/27686)). Although cross-database references are not supported in `dbt-postgres`, databases in Materialize are purely used for namespacing, and therefore do not present the same constraint.
 

misc/dbt-materialize/dbt/adapters/materialize/__version__.py

@@ -15,4 +15,4 @@
 # limitations under the License.
 
 # If you bump this version, bump it in setup.py too.
-version = "1.8.2"
+version = "1.8.3"

misc/dbt-materialize/setup.py

@@ -26,7 +26,7 @@
     # This adapter's minor version should match the required dbt-postgres version,
     # but patch versions may differ.
     # If you bump this version, bump it in __version__.py too.
-    version="1.8.2",
+    version="1.8.3",
     description="The Materialize adapter plugin for dbt.",
     long_description=(Path(__file__).parent / "README.md").open().read(),
     long_description_content_type="text/markdown",