Merge branch 'bugfix/tools_json_riscv_gdb_targets' into 'master'

tools: fix RISC-V GDB not being installed for C2, C6, H2

See merge request espressif/esp-idf!21763

tools/tools.json

@@ -89,7 +89,11 @@
       "license": "GPL-3.0-or-later",
       "name": "riscv32-esp-elf-gdb",
       "supported_targets": [
-        "esp32c3"
+        "esp32c3",
+        "esp32c2",
+        "esp32c6",
+        "esp32h2",
+        "esp32h4"
       ],
       "version_cmd": [
         "riscv32-esp-elf-gdb-no-python",