bump version to 2.6.1

bump version 2.6.0

fix #896 ESP32 Arduino changed setCACertBundle args

Support Arduino UNO WIFI 4 (#894)

feat: Arduino UNO R4 WiFi support

Add support for CA bundles (#885)

Why:

- Allow CA cert bundles to be used

This change addresses the need by:

- Adding a constructor that takes a pointer to the bundle
- Setting the WiFiClientSecure to use the bundle
- Adding an example

GITHUB_STATE --> GITHUB_OUTPUT

enable debug for CI

fix _fingerprint is set checks for ESP32

see #633 and #632

Merge branch 'eio_4_ping_handling'

EIO=4 ping handling #611