Auto merge of #21499 - PsiACE:add-gstreamer-in-dnf-install, r=jdm

Update README.md

add `gstreamer` to `dnf install`

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- [x] These changes not fix #21446, but help to compile.

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README.md

@@ -103,7 +103,7 @@ sudo dnf install curl libtool gcc-c++ libXi-devel \
     freetype-devel mesa-libGL-devel mesa-libEGL-devel glib2-devel libX11-devel libXrandr-devel gperf \
     fontconfig-devel cabextract ttmkfdir python python-virtualenv python-pip expat-devel \
     rpm-build openssl-devel cmake bzip2-devel libXcursor-devel libXmu-devel mesa-libOSMesa-devel \
-    dbus-devel ncurses-devel harfbuzz-devel ccache mesa-libGLU-devel clang clang-libs
+    dbus-devel ncurses-devel harfbuzz-devel ccache mesa-libGLU-devel clang clang-libs gstreamer
 ```
 #### On CentOS