Increment package version after release of azure-core (#6168)

---------

Co-authored-by: Anton Kolesnyk <antkmsft@users.noreply.github.com>

sdk/core/azure-core/CHANGELOG.md

@@ -1,5 +1,15 @@
 # Release History
 
+## 1.15.0-beta.1 (Unreleased)
+
+### Features Added
+
+### Breaking Changes
+
+### Bugs Fixed
+
+### Other Changes
+
 ## 1.14.1 (2024-11-01)
 
 ### Bugs Fixed

sdk/core/azure-core/src/private/package_version.hpp

@@ -11,9 +11,9 @@
 #include <cstdint>
 
 #define AZURE_CORE_VERSION_MAJOR 1
-#define AZURE_CORE_VERSION_MINOR 14
-#define AZURE_CORE_VERSION_PATCH 1
-#define AZURE_CORE_VERSION_PRERELEASE ""
+#define AZURE_CORE_VERSION_MINOR 15
+#define AZURE_CORE_VERSION_PATCH 0
+#define AZURE_CORE_VERSION_PRERELEASE "beta.1"
 
 #define AZURE_CORE_VERSION_ITOA_HELPER(i) #i
 #define AZURE_CORE_VERSION_ITOA(i) AZURE_CORE_VERSION_ITOA_HELPER(i)