Do not use own git-aggregator fork.

Now acsone/git-aggregator#6 and acsone/git-aggregator#7 are merged.

However, we still have to use a development version, so we hash-pin it.

Dockerfile

@@ -70,7 +70,7 @@ RUN ln /usr/local/bin/wkhtmltoimage /usr/local/bin/wkhtmltopdf
 
 # Patched git-aggregator
 RUN apk add --no-cache git
-RUN pip install --no-cache-dir https:/Tecnativa/git-aggregator/archive/master-depth.zip
+RUN pip install --no-cache-dir https:/acsone/git-aggregator/archive/bdfdf05a7e903b06c201f163161053a924330bed.zip
 
 # WDB debugger
 RUN pip install --no-cache-dir wdb

README.md

@@ -265,10 +265,9 @@ I told you, this image is opinionated. :wink:
 We found this one to be the most useful tool for downlading code, merging it
 and placing it somewhere.
 
-We use [our own fork](https:/Tecnativa/git-aggregator) because it
-is even better! (Until they merge some PRs and publish a new version).
-
-Actually, because [it allows you to choose a `--depth` when pulling
+We will use
+[a development version](https:/acsone/git-aggregator/tree/bdfdf05a7e903b06c201f163161053a924330bed)
+until the stable one [allows you to choose a `--depth` when pulling
 images](https:/acsone/git-aggregator/pull/7), and [fetches only the
 required remotes](https:/acsone/git-aggregator/pull/6).