Fix PRxxx printf format macros (#8222)

* Fix PRxxx printf format macros

Update toolchain (newlib) to supply proper definitions for PRxxx macros.
Fixes #8220

Added a PRxxx macro to an example to ensure CI will catch any problem like
this in the future.

Author: earlephilhower

libraries/esp8266/examples/I2STransmit/I2STransmit.ino

@@ -64,7 +64,7 @@ void setup() {
 }
 
 void loop() {
-  static int cnt = 0;
+  static uint32_t cnt = 0;
   // Each loop will send 100 raw samples (400 bytes)
   // UDP needs to be < TCP_MSS which can be 500 bytes in LWIP2
   for (int i = 0; i < 100; i++) {
@@ -75,6 +75,6 @@ void loop() {
   udp.endPacket();
   cnt++;
   if ((cnt % 100) == 0) {
-    Serial.printf("%d\n", cnt);
+    Serial.printf("%" PRIu32 "\n", cnt);
   }
 }

package/package_esp8266com_index.template.json

@@ -1,2 +1,2 @@
 // Do not edit -- Automatically generated by tools/sdk/ssl/bearssl/Makefile
-#define BEARSSL_GIT c0b69df
+#define BEARSSL_GIT 6105635