Revert indexer Dockerfiles to master

Author: hunsche

infra/indexer/ubuntu-20-04.Dockerfile

@@ -0,0 +1,24 @@
+# Copyright 2025 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+################################################################################
+
+FROM gcr.io/oss-fuzz-base/base-clang-full:ubuntu-20-04
+
+RUN mkdir /indexer
+WORKDIR /indexer
+COPY . /indexer
+
+RUN apt-get update && apt-get install -y libsqlite3-dev make zlib1g-dev
+RUN mkdir build && cd build && cmake .. && cmake --build . -j -v

infra/indexer/ubuntu-24-04.Dockerfile

@@ -0,0 +1,24 @@
+# Copyright 2025 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+################################################################################
+
+FROM gcr.io/oss-fuzz-base/base-clang-full:ubuntu-24-04
+
+RUN mkdir /indexer
+WORKDIR /indexer
+COPY . /indexer
+
+RUN apt-get update && apt-get install -y libsqlite3-dev make zlib1g-dev
+RUN mkdir build && cd build && cmake .. && cmake --build . -j -v