fix: remove src build from doc build flow (#10127)

This PR removes the src build step from the docs build flow. 

Successful CI Run:
https://github.com/AztecProtocol/aztec-packages/actions/runs/11960317707

- I have verified that `/yarn-project/+scripts-prod` is only referenced
by `/docs/Earthfile` and does not have other dependences
- The actual doc build itself is covered by setting the yarn workspace +
inheriting `FROM +serve` within the current workflow (see below). `FROM
+serve` itself uses `COPY +build/build build`, which made a duplicate
request to build src (it appears src was being built twice).

```
deploy-preview:
  BUILD ../yarn-project/+scripts-prod
  ARG ENV
  ARG NETLIFY_AUTH_TOKEN
  ARG NETLIFY_SITE_ID
  ARG AZTEC_BOT_COMMENTER_GITHUB_TOKEN
  ARG PR
  FROM +serve
  COPY --dir ../yarn-project/+scripts-prod/usr/src/yarn-project /usr/src
  COPY ./netlify.toml .
  COPY ./deploy_preview.sh .
  RUN NETLIFY_AUTH_TOKEN=$NETLIFY_AUTH_TOKEN NETLIFY_SITE_ID=$NETLIFY_SITE_ID ./deploy_preview.sh $PR $AZTEC_BOT_COMMENTER_GITHUB_TOKEN

deploy-prod:
  BUILD ../yarn-project/+scripts-prod
  ARG NETLIFY_AUTH_TOKEN
  ARG NETLIFY_SITE_ID
  FROM +serve
  COPY ./netlify.toml .
  COPY ./deploy_prod.sh .
  RUN NETLIFY_AUTH_TOKEN=$NETLIFY_AUTH_TOKEN NETLIFY_SITE_ID=$NETLIFY_SITE_ID ./deploy_prod.sh
```

docs/Earthfile

@@ -37,14 +37,14 @@ serve:
 
 
 deploy-preview:
-  BUILD ../yarn-project/+scripts-prod
+  BUILD ../yarn-project/+scripts-preview
   ARG ENV
   ARG NETLIFY_AUTH_TOKEN
   ARG NETLIFY_SITE_ID
   ARG AZTEC_BOT_COMMENTER_GITHUB_TOKEN
   ARG PR
   FROM +serve
-  COPY --dir ../yarn-project/+scripts-prod/usr/src/yarn-project /usr/src
+  COPY --dir ../yarn-project/+scripts-preview/usr/src/yarn-project /usr/src
   COPY ./netlify.toml .
   COPY ./deploy_preview.sh .
   RUN NETLIFY_AUTH_TOKEN=$NETLIFY_AUTH_TOKEN NETLIFY_SITE_ID=$NETLIFY_SITE_ID ./deploy_preview.sh $PR $AZTEC_BOT_COMMENTER_GITHUB_TOKEN

docs/deploy_preview.sh

@@ -26,4 +26,4 @@ DOCS_PREVIEW_URL=$(echo "$DEPLOY_OUTPUT" | grep -E "https://.*aztec-docs-dev.net
 echo "Unique deploy URL: $DOCS_PREVIEW_URL"
 
 cd ../yarn-project/scripts
-AZTEC_BOT_COMMENTER_GITHUB_TOKEN=$AZTEC_BOT_COMMENTER_GITHUB_TOKEN PR_NUMBER=$PR_NUMBER DOCS_PREVIEW_URL=$DOCS_PREVIEW_URL yarn docs-preview-comment 
+AZTEC_BOT_COMMENTER_GITHUB_TOKEN=$AZTEC_BOT_COMMENTER_GITHUB_TOKEN PR_NUMBER=$PR_NUMBER DOCS_PREVIEW_URL=$DOCS_PREVIEW_URL yarn docs-preview-comment

yarn-project/Earthfile

@@ -37,7 +37,6 @@ build:
     BUILD ../noir/+nargo
     BUILD --pass-args ../noir-projects/+build
     BUILD ../l1-contracts/+build
-    BUILD ../barretenberg/ts/+build
     BUILD ../noir/+packages
     FROM +deps
 
@@ -53,7 +52,6 @@ build:
     RUN ./bootstrap.sh full
     RUN cd ivc-integration && chmod +x run_browser_tests.sh && npx playwright install && npx playwright install-deps
 
-
 build-dev:
     FROM +build
     SAVE ARTIFACT /usr/src /usr/src
@@ -243,11 +241,16 @@ end-to-end:
     WORKDIR /usr/src/yarn-project/end-to-end
     ENTRYPOINT ["yarn", "test"]
 
-scripts-prod:
+scripts-preview:
     FROM +build
     RUN yarn workspaces focus @aztec/scripts --production && yarn cache clean
     SAVE ARTIFACT /usr/src /usr/src
 
+scripts-prod:
+    FROM +deps
+    RUN yarn workspaces focus @aztec/scripts --production && yarn cache clean
+    SAVE ARTIFACT /usr/src /usr/src
+
 all:
     BUILD +aztec
     BUILD +end-to-end