Upgrade pytest

tests/README.md

@@ -24,6 +24,14 @@ repository.
 
 ### Test dependencies
 
+Before running the tests, you might need to install some system packages. Here's an example for Ubuntu:
+
+```
+sudo apt update
+sudo apt install build-essential libssl-dev libffi-dev python3-dev
+sudo apt install autoconf automake libtool
+```
+
 Functional tests dependencies can be installed using `pip`. Use a virtual environment.
 ```
 # Create a new virtual environment, preferably.

tests/requirements.txt

@@ -1,7 +1,7 @@
-pytest==7.2
-pytest-xdist==1.31.0
-pytest-timeout==1.3.4
-ephemeral_port_reserve==1.1.1
+pytest>=8.3.5
+pytest-xdist>=3.6.1
+pytest-timeout>=2.3.1
+ephemeral_port_reserve>=1.1.4
 
 bip32~=3.0
 https://github.com/darosior/python-bip380/archive/fb61971d9128e663f110ea2734c1d023e7e0266b.zip