Update history for 2.26.0-rc2. (#5280)

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TYPE: NO_HISTORY
DESC: Update history for 2.26.0-rc2.

Author: KiterLuc

HISTORY.md

@@ -18,6 +18,7 @@
 * Added new functions to write schema dump to a string rather than stdout, so that non-console interactive environments such as Jupyter will be able to capture and print the output. [#5026](https://github.com/TileDB-Inc/TileDB/pull/5026)
 * Improve dense read performance for small reads. [#5145](https://github.com/TileDB-Inc/TileDB/pull/5145)
 * Skip caching redirect uri on array create. [#5224](https://github.com/TileDB-Inc/TileDB/pull/5224)
+* Enable curl error retries. [#5275](https://github.com/TileDB-Inc/TileDB/pull/5275)
 
 ## Deprecations