Merge pull request #3 from adafruit/fix-ci

fix ci

.github/workflows/githubci.yml

@@ -7,11 +7,11 @@ jobs:
     runs-on: ubuntu-latest
     
     steps:
-    - uses: actions/setup-python@v1
+    - uses: actions/setup-python@v4
       with:
         python-version: '3.x'
-    - uses: actions/checkout@v2
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v3
+    - uses: actions/checkout@v3
       with:
          repository: adafruit/ci-arduino
          path: ci

Adafruit_SHTC3.cpp

@@ -29,6 +29,8 @@
 
 #include "Adafruit_SHTC3.h"
 
+static uint8_t crc8(const uint8_t *data, int len);
+
 /*!
  * @brief  SHTC3 constructor
  */

Adafruit_SHTC3.h

@@ -48,8 +48,6 @@
 #define SHTC3_SLEEP 0xB098     /**< Enter sleep mode */
 #define SHTC3_WAKEUP 0x3517    /**< Wakeup mode */
 
-static uint8_t crc8(const uint8_t *data, int len);
-
 class Adafruit_SHTC3;
 
 /**