Update docs for release branch

- Update Pregel examples link
- Remove Antora publishing logic

Author: jjaderberg

doc/antora.yml

@@ -1,6 +1,6 @@
 name: graph-data-science
 title: Neo4j Graph Data Science
-version: '2.6-preview'
+version: '2.6'
 start_page: ROOT:index.adoc
 nav:
 - modules/ROOT/content-nav.adoc

doc/modules/ROOT/pages/algorithms/pregel-api.adoc

@@ -29,7 +29,7 @@ The introduction of a new Pregel algorithm can be separated in two main steps.
 First, we need to implement the algorithm using the Pregel Java API.
 Second, we need to expose the algorithm via a Cypher procedure to make use of it.
 
-For an example on how to expose a custom Pregel computation via a Neo4j procedure, have a look at the https://github.com/neo4j/graph-data-science/tree/master/examples/pregel-example/src/main/java/org/neo4j/gds/beta/pregel[Pregel examples].
+For an example on how to expose a custom Pregel computation via a Neo4j procedure, have a look at the https://github.com/neo4j/graph-data-science/tree/2.6/examples/pregel-example/src/main/java/org/neo4j/gds/beta/pregel[Pregel examples].
 
 [[algorithms-pregel-api-java]]
 == Pregel Java API

doc/package.json

@@ -6,12 +6,9 @@
   "scripts": {
     "test": "echo \"Error: no test specified\" && exit 1",
     "start": "nodemon -e adoc --exec \"npm run build && npm run serve\"",
-    "start:publish": "nodemon -e adoc --exec \"npm run build:publish && npm run serve\"",
     "serve": "node server.js",
     "build": "antora preview.yml --stacktrace --log-format=pretty",
-    "build:publish": "antora publish.yml --stacktrace --log-format=pretty",
     "build-verify": "antora --stacktrace --fetch preview.yml --log-format=json --log-level=info --log-file ./build/log/log.json",
-    "publish-verify": "antora --stacktrace --fetch publish.yml --log-format=json --log-file ./build/log/log.json"
   },
   "keywords": [
     "antora",