sphinx: update link to bitbake docs

The Sphinx based Bitbake documentation for dunfell release is published to
https://docs.yoctoproject.org/bitbake/1.46/.

(From yocto-docs rev: b8a0f97563d9680786228ecd11fafb8a4c09ea0a)

Signed-off-by: Nicolas Dechesne <nicolas.dechesne@linaro.org>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

documentation/conf.py

@@ -82,7 +82,7 @@ extlinks = {
 
 # Intersphinx config to use cross reference with Bitbake user manual
 intersphinx_mapping = {
-    'bitbake': ('https://docs.yoctoproject.org/bitbake/', None)
+    'bitbake': ('https://docs.yoctoproject.org/bitbake/1.46', None)
 }
 
 # -- Options for HTML output -------------------------------------------------

documentation/index.rst

@@ -33,7 +33,7 @@ Welcome to the Yocto Project Documentation
    Profile and Tracing Manual <profile-manual/profile-manual>
    Application Development and the Extensible SDK (eSDK) <sdk-manual/sdk-manual>
    Toaster Manual <toaster-manual/toaster-manual>
-   Bitbake User Manual <https://docs.yoctoproject.org/bitbake>
+   Bitbake User Manual <https://docs.yoctoproject.org/bitbake/1.46>
 
 .. toctree::
    :maxdepth: 1