ESP32 Platform 2024.05.13

[Jason2866]

Description:

reverts Arduino PR 9453 WiFiClient - rename flush() to clear() which brakes many used libraries.

@arendst needs right after merging reverting of the relevant Tasmota commits

Checklist:

• [x] The pull request is done against the latest development branch
• [x] Only relevant files were touched
• [ ] Only one feature/fix was added per PR and the code change compiles without warnings
• [ ] The code change is tested and works with Tasmota core ESP8266 V.2.7.6
• [ ] The code change is tested and works with Tasmota core ESP32 V.3.0.0
• [x] I accept the CLA.

NOTE: The code change must pass CI tests. Your PR cannot be merged unless tests pass

[arendst]

Step 1: Let's wait for CI to finish. Step 2: I will revert my PR's which would still compile fine. Step 3: Merge this PR.

I'll do the steps.