Add possibility to switch of ghost records in the staging macro

[tkiehn]

By introducing the parameter enable_ghost_records it is possible to disable the creation of ghost records in the staging macros.

The default value for the new parameter is set to true which reflects the current behavior.

Reminder to update the wiki when merging this PR.

[tkirschke]

Soft-approve, wait for Pipeline testing

[remoteworkflow]

Link to workflow summary: https://github.com/ScalefreeCOM/datavault4dbt-ci-cd/actions/runs/10668908634

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RESULTS for Synapse:
❌ dbt-tests
❌ dbt-macro-tests

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RESULTS for Postgres:
❌ dbt-tests
❌ dbt-macro-tests

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RESULTS for BigQuery:
❌ dbt-tests
❌ dbt-macro-tests

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RESULTS for Redshift:
❌ dbt-tests
❌ dbt-macro-tests

---

RESULTS for Snowflake:
❌ dbt-tests
❌ dbt-macro-tests

---

RESULTS for Exasol:
❌ dbt-tests
❌ dbt-macro-tests

[remoteworkflow]

Link to workflow summary: https://github.com/ScalefreeCOM/datavault4dbt-ci-cd/actions/runs/10677943739

---

RESULTS for Synapse:
✅ dbt-tests
✅ dbt-macro-tests

---

RESULTS for Postgres:
✅ dbt-tests
✅ dbt-macro-tests

---

RESULTS for BigQuery:
✅ dbt-tests
✅ dbt-macro-tests

---

RESULTS for Redshift:
❌ dbt-tests
✅ dbt-macro-tests

---

RESULTS for Snowflake:
✅ dbt-tests
✅ dbt-macro-tests

---

RESULTS for Exasol:
❌ dbt-tests
✅ dbt-macro-tests

[remoteworkflow]

Link to workflow summary: https://github.com/ScalefreeCOM/datavault4dbt-ci-cd/actions/runs/10678553197

---

RESULTS for Synapse:
✅ dbt-tests
✅ dbt-macro-tests

---

RESULTS for Postgres:
✅ dbt-tests
✅ dbt-macro-tests

---

RESULTS for BigQuery:
✅ dbt-tests
✅ dbt-macro-tests

---

RESULTS for Redshift:
✅ dbt-tests
✅ dbt-macro-tests

---

RESULTS for Snowflake:
✅ dbt-tests
✅ dbt-macro-tests

---

RESULTS for Exasol:
❌ dbt-tests
❌ dbt-macro-tests

[tkiehn]

Reminder to update the wiki when merging this PR.

[tkirschke]

Reminder to update the wiki when merging this PR.

Was merged, please update the wiki @tkiehn 😄