Update requirements and doc assets

Author: PierreRaybaut

doc/images/shots/i_blob_detection_flower.png

@@ -17,7 +17,7 @@ The `datalab-platform` package requires the following Python modules:
       - >= 2.8.2
       - Curve and image plotting tools for Python/Qt applications
     * - Sigima
-      - >= 1.0.3
+      - >= 1.0.4
       - Scientific computing engine for 1D signals and 2D images, part of the DataLab open-source platform.
     * - NumPy
       - >= 1.22

doc/images/shots/s_create.png

@@ -4,7 +4,7 @@ PlotPy >= 2.8.2
 PyQt5 >= 5.15.6
 PyWavelets >= 1.2
 SciPy >= 1.10.1
-Sigima >= 1.0.3
+Sigima >= 1.0.4
 babel
 build
 guidata >= 3.13.4