Updating CODEOWNERS to consolidate (#7693)

Consolidating to remove Language and Execution and instead default to the `core-team`

.github/CODEOWNERS

@@ -11,7 +11,7 @@
 
 # As a default for areas with no assignment,
 # the core team as a whole will be assigned
-*       @dbt-labs/core
+*       @dbt-labs/core-team
 
 ### OSS Tooling Guild
 
@@ -31,40 +31,6 @@ dev_requirements.txt            @dbt-labs/guild-oss-tooling
 /core/setup.py                  @dbt-labs/guild-oss-tooling
 /core/MANIFEST.in               @dbt-labs/guild-oss-tooling
 
-### LANGUAGE
-
-# Language core modules
-/core/dbt/config/               @dbt-labs/core-language
-/core/dbt/context/              @dbt-labs/core-language
-/core/dbt/contracts/            @dbt-labs/core-language
-/core/dbt/deps/                 @dbt-labs/core-language
-/core/dbt/events/               @dbt-labs/core-language  # structured logging
-/core/dbt/parser/               @dbt-labs/core-language
-
-# Language misc files
-/core/dbt/dataclass_schema.py   @dbt-labs/core-language
-/core/dbt/hooks.py              @dbt-labs/core-language
-/core/dbt/node_types.py         @dbt-labs/core-language
-/core/dbt/semver.py             @dbt-labs/core-language
-
-
-### EXECUTION
-
-# Execution core modules
-/core/dbt/graph/                @dbt-labs/core-execution
-/core/dbt/task/                 @dbt-labs/core-execution
-
-# Execution misc files
-/core/dbt/compilation.py        @dbt-labs/core-execution
-/core/dbt/flags.py              @dbt-labs/core-execution
-/core/dbt/lib.py                @dbt-labs/core-execution
-/core/dbt/main.py               @dbt-labs/core-execution
-/core/dbt/profiler.py           @dbt-labs/core-execution
-/core/dbt/selected_resources.py @dbt-labs/core-execution
-/core/dbt/tracking.py           @dbt-labs/core-execution
-/core/dbt/version.py            @dbt-labs/core-execution
-
-
 ### ADAPTERS
 
 # Adapter interface ("base" + "sql" adapter defaults, cache)