sometimes I am stupid, let clean up src dirs for src packages install once installed and check before in case the flow failed previously before the cleanup (#774)

.github/workflows/ci_ubuntu.yml

@@ -63,9 +63,9 @@ jobs:
         run: sudo -E apt-get install --fix-missing -qq -o Acquire::Retries=3 cmake clang-12 gcc build-essential libjpeg-turbo8-dev libimagequant-dev libde265-dev libpng-dev libwebp-dev libtiff5-dev libx265-dev libheif-dev libfreetype-dev libheif-dev libavifile-0.7-dev libxpm-dev libraqm-dev dh-autoreconf ninja-build nasm meson
 
       - name: install AOM codec for libavif
-        if: "!contains(matrix.config.name,'Ubuntu Graviton GCC')"
         run: |
           cd ${{github.temp }}
+          [ -d "aom" ] &&  rm -rf aom
           git clone -b v3.1.2 --depth 1 https://aomedia.googlesource.com/aom
           cd aom
           mkdir build.libavif
@@ -73,9 +73,13 @@ jobs:
           cmake -G Ninja -DCMAKE_BUILD_TYPE=Release -DENABLE_DOCS=0 -DENABLE_EXAMPLES=0 -DENABLE_TESTDATA=0 -DENABLE_TESTS=0 -DENABLE_TOOLS=0  -DBUILD_SHARED_LIBS=1 -DCMAKE_INSTALL_PREFIX:PATH=/usr ..
           ninja
           sudo ninja install
+          cd ..
+          rm -rf aom
 
       - name: install dav1d codec for libavif
         run: |
+          cd ${{github.temp }}
+          [ -d "dav1d" ] &&  rm -rf dav1d
           git clone -b 0.9.2 --depth 1 https://code.videolan.org/videolan/dav1d.git
           cd dav1d
           mkdir build
@@ -83,10 +87,13 @@ jobs:
           meson --buildtype release -Dprefix=/usr ..
           ninja
           sudo ninja install
+          cd ..
+          rm -rf dav1d
 
       - name: install libyuv
         run: |
           cd ${{github.temp }}
+          [ -d "libyuv" ] &&  rm -rf libyuv
           git clone https://chromium.googlesource.com/libyuv/libyuv/
           cd libyuv
           mkdir build
@@ -94,10 +101,13 @@ jobs:
           cmake -DCMAKE_INSTALL_PREFIX:PATH=/usr -B. ..
           make
           sudo make install
+          cd ..
+          rm -rf libyuv
 
       - name: install libavif
         run: |
           cd ${{github.temp }}
+          [ -d "libavif" ] &&  rm -rf libavif
           git clone https://github.com/AOMediaCodec/libavif.git
           cd libavif
           git checkout tags/v0.9.2
@@ -106,6 +116,8 @@ jobs:
           cmake -DBUILD_SHARED_LIBS=1 -DAVIF_CODEC_AOM=1 -DAVIF_CODEC_DAV1D=1 -DAVIF_CODEC_LIBGAV1=0 -DAVIF_CODEC_RAV1E=0 -DAVIF_CODEC_SVT=0 -B. ..
           make
           sudo make install
+          cd ..
+          rm -rf libavif
 
       - name: Debug CC Env
         env: