Merge pull request #1939 from opensafely/update-project-version

Update project.yaml version in examples

Author: rebkwok

docs/actions-pipelines.md

@@ -28,7 +28,7 @@ It is written using a configuration format called [YAML](https://yaml.org/), whi
 A simple example of a `project.yaml` is as follows:
 
 ```yaml
-version: "4.0"
+version: "5.0"
 
 actions:
   generate_dataset:

docs/case-control-studies.md

@@ -35,7 +35,7 @@ There are five steps to undertaking a [case-control study](https://en.wikipedia.
 To begin with, our [`project.yaml`](actions-pipelines.md) looks like this:
 
 ```yaml
-version: '4.0'
+version: '5.0'
 
 actions:
   # Extract data for the cases

docs/getting-started/tutorial/add-a-scripted-action-to-the-pipeline/index.md

@@ -67,7 +67,7 @@ This code reads the CSV of patient data, and saves a histogram of ages to a new
 === "Python"
 
     ```yaml linenums="1" hl_lines="10 11 12 13 14 15"
-    version: "4.0"
+    version: "5.0"
 
     actions:
       generate_dataset:
@@ -87,7 +87,7 @@ This code reads the CSV of patient data, and saves a histogram of ages to a new
 === "R"
 
     ```yaml linenums="1" hl_lines="10 11 12 13 14 15"
-    version: "4.0"
+    version: "5.0"
 
     actions:
       generate_dataset:

docs/getting-started/tutorial/run-the-project-pipeline/index.md

@@ -24,7 +24,7 @@ open the `project.yaml` file by clicking on it. This file will be near the end o
 You should see a tab with the following content:
 
 ```yaml linenums="1" hl_lines="5"
-version: "4.0"
+version: "5.0"
 
 actions:
   generate_dataset: