Bump minor version to 0.4.0 (#232)

Co-authored-by: qbraidTeam <qbraid.team@qbraid.com>

Author: github-actions[bot]

CITATION.cff

@@ -20,7 +20,7 @@ authors:
   affiliation: qBraid Co.
 repository-code: https://github.com/qBraid/qbraid-qir
 url: https://qbraid.github.io/qbraid-qir
-repository-artifact: https://github.com/qBraid/qbraid-qir/releases/tag/v0.3.2
+repository-artifact: https://github.com/qBraid/qbraid-qir/releases/tag/v0.4.0
 keywords:
 - python
 - quantum-computing
@@ -29,5 +29,5 @@ keywords:
 - cirq
 - openasm
 license: Apache-2.0
-version: 0.3.2
-date-released: '2025-04-25'
+version: 0.4.0
+date-released: '2025-06-17'

qbraid_qir/_version.py

@@ -18,4 +18,4 @@
 Version number (major.minor.patch[-label])
 
 """
-__version__ = "0.3.2"
+__version__ = "0.4.0"