doc: coding_guidelines: Update reference to Bluetooth language document

Update the reference to the Bluetooth Appropriate Language Mapping
Tables document. The link is now the same as the Bluetooth SIG website
uses.

Signed-off-by: Johan Hedberg <[email protected]>

Author: Johan Hedberg

doc/contribute/coding_guidelines/index.rst

@@ -1250,7 +1250,7 @@ Related GitHub Issues and Pull Requests are tagged with the `Inclusive Language
 
 .. _Inclusive Language Label: https://github.com/zephyrproject-rtos/zephyr/issues?q=label%3A%22Inclusive+Language%22
 .. _I2C Specification: https://www.nxp.com/docs/en/user-guide/UM10204.pdf
-.. _Bluetooth Appropriate Language Mapping Tables: https://btprodspecificationrefs.blob.core.windows.net/language-mapping/Appropriate_Language_Mapping_Table.pdf
+.. _Bluetooth Appropriate Language Mapping Tables: https://specificationrefs.bluetooth.com/language-mapping/Appropriate_Language_Mapping_Table.pdf
 .. _OSHWA Resolution to Redefine SPI Signal Names: https://www.oshwa.org/a-resolution-to-redefine-spi-signal-names/
 .. _CAN in Automation Inclusive Language news post: https://www.can-cia.org/news/archive/view/?tx_news_pi1%5Bnews%5D=699&tx_news_pi1%5Bday%5D=6&tx_news_pi1%5Bmonth%5D=12&tx_news_pi1%5Byear%5D=2020&cHash=784e79eb438141179386cf7c29ed9438
 .. _CAN in Automation Inclusive Language: https://can-newsletter.org/canopen/categories/