Add trixie-based gcc image (#1520)

Author: jkoritzinsky

src/debian/13/gcc15/amd64/Dockerfile

@@ -0,0 +1,40 @@
+FROM library/gcc:15-trixie
+
+# Dependencies for dotnet/runtime native components.
+RUN apt-get update \
+    && apt-get upgrade -y \
+    && apt-get install -y \
+        apt-transport-https \
+        curl \
+    && curl -sL https://packages.microsoft.com/config/debian/13/packages-microsoft-prod.deb -o packages-microsoft-prod.deb \
+    && dpkg -i packages-microsoft-prod.deb \
+    && rm packages-microsoft-prod.deb \
+    && apt-get update \
+    && apt-get install -y \
+        azure-cli \
+        cmake \
+        gdb \
+        git \
+        iputils-ping \
+        libicu-dev \
+        libkrb5-dev \
+        liblttng-ust-dev \
+        libssl-dev \
+        liblldb-dev \
+        lttng-tools \
+        locales \
+        locales-all \
+        pigz \
+        python3-dev \
+        python3-pip \
+        sudo \
+        tzdata \
+    && rm -rf /var/lib/apt/lists/* \
+    && localedef -i en_US -c -f UTF-8 -A /usr/share/locale/locale.alias en_US.UTF-8
+
+ENV LANG=en_US.utf8
+
+# These symlinks are required because this docker has gcc-12 suffixed with version and gcc-15 unsuffixed in PATH.
+# In the runtime repo, we (by design) give precedence to suffixed compilers before selecting unsuffixed one in PATH.
+RUN ln -s $(command -v gcc) /usr/bin/gcc-15 \
+    && ln -s $(command -v g++) /usr/bin/g++-15

src/debian/manifest.json

@@ -137,6 +137,19 @@
               "variant": "v7"
             }
           ]
+        },
+        {
+          "platforms": [
+            {
+              "architecture": "amd64",
+              "dockerfile": "src/debian/13/gcc15/amd64",
+              "os": "linux",
+              "osVersion": "trixie",
+              "tags": {
+                "debian-13-gcc15-amd64": {}
+              }
+            }
+          ]
         }
       ]
     }