ci: ESP32 2.x is no longer supported

.github/workflows/build.yml

@@ -19,10 +19,6 @@ jobs:
             core: esp32:esp32
             fqbn: esp32:esp32:esp32wrover:PartitionScheme=noota_ffat
             arduino-libs: NimBLE-Arduino
-          - chip: ESP32S2
-            core-url: https://espressif.github.io/arduino-esp32/package_esp32_index.json
-            core: esp32:esp32@2.0.17
-            fqbn: esp32:esp32:adafruit_magtag29_esp32s2:PartitionScheme=noota_ffat
           - chip: ESP32C3
             core-url: https://espressif.github.io/arduino-esp32/package_esp32_index.json
             core: esp32:esp32
@@ -38,7 +34,7 @@ jobs:
     steps:
       - uses: actions/setup-python@v5
         with:
-          python-version: '3.10'
+          python-version: '3.11'
         if: ${{ matrix.pip-deps }}
       - uses: arduino/setup-arduino-cli@v1
       - id: cores
@@ -48,7 +44,7 @@ jobs:
           arduino-cli update --additional-urls "${{ matrix.core-url }}"
           echo d=$(sha256sum ~/.arduino15/package_*index.json | sha256sum | cut -d' ' -f1) >> $GITHUB_OUTPUT
       - name: Cache Arduino cores
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: ~/.arduino15/staging/packages
           key: cores-${{ steps.cores.outputs.d }}

README.md

@@ -2,7 +2,7 @@
 
 [![GitHub Workflow status](https://img.shields.io/github/actions/workflow/status/yoursunny/esp8266ndn/build.yml?style=flat)](https://github.com/yoursunny/esp8266ndn/actions) [![GitHub code size](https://img.shields.io/github/languages/code-size/yoursunny/esp8266ndn?style=flat)](https://github.com/yoursunny/esp8266ndn)
 
-**esp8266ndn** library enables [Named Data Networking](https://named-data.net/) application development in Arduino environment. It supports [ESP8266](https://github.com/esp8266/Arduino), [ESP32, ESP32-S2, ESP32-C3](https://github.com/espressif/arduino-esp32), and [Adafruit nRF52](https://github.com/adafruit/Adafruit_nRF52_Arduino) microcontrollers.
+**esp8266ndn** library enables [Named Data Networking](https://named-data.net/) application development in Arduino environment. It supports [ESP8266](https://github.com/esp8266/Arduino), [ESP32 series](https://github.com/espressif/arduino-esp32) (3.x core), and [Adafruit nRF52](https://github.com/adafruit/Adafruit_nRF52_Arduino) microcontrollers.
 
 * [Doxygen documentation](https://esp8266ndn.ndn.today/)
 * [#esp8266ndn on Twitter](https://twitter.com/hashtag/esp8266ndn) for announcements

examples/BlePingServer/.ci.json

@@ -4,7 +4,6 @@
     "",
     "--build-property=build.defines=-DDEMO_BLEPINGSERVER_DISABLE_NIMBLE=1"
   ],
-  "ESP32S2": [],
   "ESP32C3": [
     "",
     "--build-property=build.defines=-DDEMO_BLEPINGSERVER_DISABLE_NIMBLE=1"