Resolve compiling issues by using SNMP master

.gitlab-ci.yml

@@ -27,8 +27,8 @@ build:
 
     # Install dependencies
     - arduino-cli lib install Ethernet
-    - arduino-cli lib install SNMP@1.4.0
     - arduino-cli lib install MCP23S08@0.5.2
+    - arduino-cli lib install --git-url https://github.com/patricklaf/SNMP.git --config-file arduino-cli.yaml  # Awaiting 1.4.1+ tag
 
     # Set version, tag if available else commit sha
     - ICBM_GIT_VERSION=$CI_COMMIT_SHORT_SHA

README.md

@@ -69,9 +69,13 @@ Update the Arduino index with:
 The required libraries are (minimum versions):
 
     arduino-cli lib install ethernet
-    arduino-cli lib install SNMP@1.4.0
+    arduino-cli lib install --git-url https://github.com/patricklaf/SNMP.git --config-file arduino-cli.yaml  # Awaiting 1.4.1+ tag
     arduino-cli lib install MCP23S08@0.5.2
 
+
+`SNMP` needs to be installed from Git until a new release (greater than 1.4.0) is released due to compilation issues with arduino-esp 3+.  
+This is fixed in master, but not tagged and released in the Arduino library list.
+
 The project can be compiled so:
 
     arduino-cli compile -b esp32:esp32:esp32wroverkit icbm.ino -v