updated links with ETSI gitlab repo

doc/contributing/developing.md

@@ -7,7 +7,7 @@ Openslice uses various subsystems and depending on the module would you like to
 
 To get the latest development branch:
 ```
-wget https://raw.githubusercontent.com/openslice/org.etsi.osl.main/develop/compose/deploy.sh 
+wget https://labs.etsi.org/rep/osl/code/org.etsi.osl.main/-/raw/develop/compose/deploy.sh 
 sudo ./deploy.sh develop  [or replace develop with other branch name]
 ```
 

doc/deployment.md

@@ -16,7 +16,7 @@ _NOTE:_  Since July 2023 Docker Compose V1 stopped receiving updates. Openslice
 
 3 - Download environment preparation script
 ```
-wget https://raw.githubusercontent.com/openslice/org.etsi.osl.main/master/compose/deploy.sh
+wget https://labs.etsi.org/rep/osl/code/org.etsi.osl.main/-/raw/main/compose/deploy.sh
 ```
 
 4 - Work with main/master branch: