datadog-agent: various fixes to work with latest 7.60.0 update

Included:
- add libpcap
- symlink so build avoids downloading libpcap and uses system lib
- build with python 3.12 as integration dependencies require it
```
ERROR: Package 'datadog-slurm' requires a different Python: 3.11.11 not in '>=3.12'
```

Signed-off-by: James Rawlings <[email protected]>

datadog-agent.yaml

@@ -13,11 +13,12 @@ package:
       - datadog-agent-core-integrations
       - findutils
       - grep
+      - libpcap
       - libseccomp
       - shadow
 
 vars:
-  py-version: "3.11"
+  py-version: "3.12"
   destd: /opt/datadog-agent
 
 var-transforms:
@@ -60,8 +61,8 @@ environment:
       - go
       - krb5-dev
       - libbpf-dev
-      - libpcap-dev
       - libedit-dev
+      - libpcap-dev # Add development headers
       - libzip
       - linux-headers
       - ninja
@@ -77,9 +78,10 @@ environment:
     # CGo allows Go programs to call C code
     CGO_ENABLED: "1"
     # -Os optimizes the code for size and add the directory to rtlinkers includes
-    CGO_CFLAGS: "-Os -I${{targets.destdir}}/usr/include/"
+    CGO_CFLAGS: "-Os -I/usr/include/"
     # Pass options to the linker.
-    CGO_LDFLAGS: "-L${{targets.destdir}}/usr/lib/"
+    # CGO_LDFLAGS: "-L/usr/lib -lpcap"
+    CGO_LDFLAGS: "-L/usr/lib"
     # disables generation of debugging information
     # omits the symbol table and debug information, further reducing the size of the binary.
     GOFLAGS: "-ldflags=-w -ldflags=-s"
@@ -135,6 +137,11 @@ pipeline:
       wget "https://github.com/llvm/llvm-project/releases/download/llvmorg-12.0.1/clang+llvm-12.0.1-x86_64-linux-gnu-ubuntu-16.04.tar.xz" -O /tmp/clang.tar.xz  -o /dev/null
       echo "6b3cc55d3ef413be79785c4dc02828ab3bd6b887872b143e3091692fc6acefe7  /tmp/clang.tar.xz" | sha256sum --check
 
+  # need to link libpcap.a to /home/build/dev/lib/libpcap.a else the build will attempt to download libpcap
+  - runs: |
+      mkdir -p /home/build/dev/lib
+      ln -s /usr/lib/libpcap.a /home/build/dev/lib/libpcap.a
+
   - runs: |
       wget -O common.deb http://deb.debian.org/debian-security/pool/updates/main/l/linux-5.10/linux-headers-${LINUX_HEADERS_VERSION}-common_${LINUX_KERNEL_VERSION}_all.deb
       dpkg -x common.deb /tmp/common
@@ -165,7 +172,6 @@ pipeline:
 
   - runs: |
       invoke -e rtloader.make \
-        --python-runtimes=3 \
         --install-prefix="${{targets.destdir}}/usr" \
         --cmake-options="\
           -DCMAKE_INSTALL_LIBDIR=lib \
@@ -181,7 +187,6 @@ pipeline:
         --bundle system-probe \
         --bundle security-agent \
         --exclude-rtloader \
-        --python-runtimes 3 \
         --no-development \
         --bundle-ebpf \
         --embedded-path /usr/lib
@@ -287,7 +292,7 @@ subpackages:
             with:
               repository: https://github.com/DataDog/integrations-core
               branch: ${{vars.datadog-major-minor-x}} # 7.59.x
-              expected-commit: cff91adb18fe879fd875d62d285a67deb69040fe # needs to be updated with each new release
+              expected-commit: 3189af0e0ae840c9a4bab3131662c7fd6b0de7fb # needs to be updated with each new release
           - uses: patch
             with:
               patches: /home/build/int-core-datadog_checks_dev-pyproject-toml.patch /home/build/int-core-mysql-hatch-toml.patch /home/build/int-core-singlestore-hatch-toml.patch /home/build/int-core-agent_requirements-in.patch /home/build/int-core-snowflake-pyproject-toml.patch
@@ -299,7 +304,7 @@ subpackages:
               python${{vars.py-version}} -m venv .venv
 
               # Install locked dependencies
-              .venv/bin/pip install --require-hashes --only-binary=:all: --no-deps -r .deps/resolved/linux-${{build.arch}}_py3.txt
+              .venv/bin/pip install --require-hashes --only-binary=:all: --no-deps -r .deps/resolved/linux-${{build.arch}}_${{vars.py-version}}.txt
 
               excludes="datadog_checks_base datadog_checks_dev datadog_checks_tests_helper docker_daemon esxi teleport"
               checks=$(invoke -r /home/build agent.collect-integrations /home/integrations/ 3 linux --excluded "$excludes")

datadog-agent/int-core-agent_requirements-in.patch

@@ -1,13 +1,13 @@
 diff --git a/agent_requirements.in b/agent_requirements.in
-index b4c724713e..0713f9b365 100644
+index 859d088..11f529c 100644
 --- a/agent_requirements.in
 +++ b/agent_requirements.in
-@@ -66,7 +66,7 @@ semver==3.0.2
+@@ -65,7 +65,7 @@ securesystemslib[crypto,pynacl]==0.28.0
+ semver==3.0.2
  service-identity[idna]==24.1.0
  simplejson==3.19.3
- six==1.16.0
 -snowflake-connector-python==3.12.1
 +snowflake-connector-python==3.12.3; python_version > '3.0'
  supervisor==4.2.5
  tuf==4.0.0
- uptime==3.0.1
+ uptime==3.0.1