Use latest download link on main branch (#5506)

.github/workflows/prepare-release-branch.yml

@@ -37,7 +37,7 @@ jobs:
       - name: Bump download link version
         run: |
           new_version=$(grep -Eo "[0-9]+.[0-9]+.0" version.gradle.kts | head -1)
-          sed -Ei "s,https://github.com/open-telemetry/opentelemetry-java-instrumentation/releases/download/v[0-9]+.[0-9]+.[0-9]+/,https://github.com/open-telemetry/opentelemetry-java-instrumentation/releases/download/v$new_version/," README.md
+          sed -Ei "s,https://github.com/open-telemetry/opentelemetry-java-instrumentation/releases/latest/download/,https://github.com/open-telemetry/opentelemetry-java-instrumentation/releases/download/v$new_version/," README.md
 
       - name: Setup git name
         run: |

README.md

@@ -59,7 +59,7 @@ if you are looking for documentation on using those.
 
 ## Getting Started
 
-Download the [latest version](https://github.com/open-telemetry/opentelemetry-java-instrumentation/releases/download/v1.11.1/opentelemetry-javaagent.jar).
+Download the [latest version](https://github.com/open-telemetry/opentelemetry-java-instrumentation/releases/latest/download/opentelemetry-javaagent.jar).
 
 This package includes the instrumentation agent as well as
 instrumentations for all supported libraries and all available data exporters.