chore: bump release version to 2.7.1

Signed-off-by: Frederic Pillon <frederic.pillon@st.com>

Author: fpistm

README.md

@@ -9,7 +9,7 @@
 
 [![GitHub release](https://img.shields.io/github/release/stm32duino/Arduino_Core_STM32.svg)](https://github.com/stm32duino/Arduino_Core_STM32/releases/latest)
 ![GitHub All Releases](https://img.shields.io/github/downloads/stm32duino/Arduino_Core_STM32/total.svg?label=downloads%20since%201.4.0)
-[![GitHub commits](https://img.shields.io/github/commits-since/stm32duino/Arduino_Core_STM32/2.7.0.svg)](https://github.com/stm32duino/Arduino_Core_STM32/compare/2.7.0...main)
+[![GitHub commits since latest release](https://img.shields.io/github/commits-since/stm32duino/Arduino_Core_STM32/latest/main)](https://github.com/stm32duino/Arduino_Core_STM32/compare/2.7.1...main)
 
 
 * [Introduction](https://github.com/stm32duino/Arduino_Core_STM32#Introduction)<br>

cores/arduino/stm32/stm32_def.h

@@ -6,15 +6,15 @@
  * @brief STM32 core version number
  */
 #define STM32_CORE_VERSION_MAJOR    (0x02U) /*!< [31:24] major version */
-#define STM32_CORE_VERSION_MINOR    (0x08U) /*!< [23:16] minor version */
-#define STM32_CORE_VERSION_PATCH    (0x00U) /*!< [15:8]  patch version */
+#define STM32_CORE_VERSION_MINOR    (0x07U) /*!< [23:16] minor version */
+#define STM32_CORE_VERSION_PATCH    (0x01U) /*!< [15:8]  patch version */
 /*
  * Extra label for development:
  * 0: official release
  * [1-9]: release candidate
  * F[0-9]: development
  */
-#define STM32_CORE_VERSION_EXTRA    (0xF0U) /*!< [7:0]  extra version */
+#define STM32_CORE_VERSION_EXTRA    (0x00U) /*!< [7:0]  extra version */
 #define STM32_CORE_VERSION          ((STM32_CORE_VERSION_MAJOR << 24U)\
                                         |(STM32_CORE_VERSION_MINOR << 16U)\
                                         |(STM32_CORE_VERSION_PATCH << 8U )\

platform.txt

@@ -5,7 +5,7 @@
 # https://arduino.github.io/arduino-cli/latest/platform-specification/
 
 name=STM32 boards groups (Board to be selected from Tools submenu 'Board part number')
-version=2.8.0-dev
+version=2.7.1
 
 # STM compile variables
 # ----------------------