Update compile-rtk-everywhere.yml

Author: nseidle

.github/workflows/compile-rtk-everywhere.yml

@@ -95,6 +95,7 @@ jobs:
           "SparkFun IM19 IMU Arduino Library"@1.0.1
           "SparkFun UM980 Triband RTK GNSS Arduino Library"@1.0.4
           "SparkFun LG290P Quadband RTK GNSS Arduino Library"@1.0.0
+          "SparkFun I2C Expander Arduino Library"@1.0.1
 
       - name: Patch libmbedtls
         run: |