fix issue with PRIu64 on some compilers, by including sys/types.h early

[AuxLoui]

Fix for #207 (PRIu64 problem)

[thiagomacieira]

Feedback on making commits and making PRs (general, not about this one in particular):

• the commit message should explain why you're making a change. If you have an error message, it's often useful to include it.
• you don't need to explain the what you're changing, because we can read diffs
• the first line of the commit is the "subject" and should be a summary, which we can see in one-line logs (e.g. https://github.com/intel/tinycbor/commits/main/)
• some projects require that you include a signed-off-by footer. We don't insist for TinyCBOR, but I would prefer it is there.
• each commit should be a single, logical/semantic change, which doesn't break the build
• the GitHub PR page is a summary of all commits in the change. If there's only one commit, then just copy the commit message and body (GitHub will do it for you).

[thiagomacieira]

The comment wasn't necessary. But I'll allow it.

However, is this high enough? Imagine something changes in the headers above and breaks? Especially cbor.h, which includes stdint.h.

[AuxLoui]

Sorry for late reply. Your comment did have me give an other thought about this problem, and came to the conclusion that instead of implementing a work around for a specific compiler instead you should use a working compiler. So instead of using this fix/workaround I changed my docker image used to compile my program in CI/CD pipeline. So will close this pull request, if other have this problem this is my used dockerbuild definition used wit gitlab.

FROM ubuntu:26.04

ENV DEBIAN_FRONTEND=noninteractive

ARG ARM_GNU_TOOLCHAIN_VERSION=15.2.Rel1
ARG ARM_GNU_TOOLCHAIN_ARCHIVE=arm-gnu-toolchain-15.2.Rel1-x86_64-arm-none-eabi.tar.xz
ARG ARM_GNU_TOOLCHAIN_DIR=arm-gnu-toolchain-15.2.rel1-x86_64-arm-none-eabi
ARG ARM_GNU_TOOLCHAIN_URL=https://developer.arm.com/-/media/Files/downloads/gnu/${ARM_GNU_TOOLCHAIN_VERSION}/binrel/${ARM_GNU_TOOLCHAIN_ARCHIVE}
ARG PICO_SDK_VERSION=2.2.0

RUN apt-get update && apt-get install -y --no-install-recommends \
    build-essential \
    ca-certificates \
    cmake \
    curl \
    git \
    ninja-build \
    python3 \
    xz-utils && \
    rm -rf /var/lib/apt/lists/*

RUN mkdir -p /opt/toolchains /opt/pico-sdk && \
    curl -fsSL "${ARM_GNU_TOOLCHAIN_URL}" -o "/tmp/${ARM_GNU_TOOLCHAIN_ARCHIVE}" && \
    tar -xJf "/tmp/${ARM_GNU_TOOLCHAIN_ARCHIVE}" -C /opt/toolchains && \
    rm -f "/tmp/${ARM_GNU_TOOLCHAIN_ARCHIVE}" && \
    test -x "/opt/toolchains/${ARM_GNU_TOOLCHAIN_DIR}/bin/arm-none-eabi-gcc" && \
    git clone --branch "${PICO_SDK_VERSION}" --depth 1 https://github.com/raspberrypi/pico-sdk.git /opt/pico-sdk && \
    git -C /opt/pico-sdk submodule update --init --recursive

ENV ARM_GNU_TOOLCHAIN_VERSION=${ARM_GNU_TOOLCHAIN_VERSION}
ENV ARM_GNU_TOOLCHAIN_PATH=/opt/toolchains/${ARM_GNU_TOOLCHAIN_DIR}
ENV PICO_SDK_VERSION=${PICO_SDK_VERSION}
ENV PICO_SDK_PATH=/opt/pico-sdk
ENV PATH=${ARM_GNU_TOOLCHAIN_PATH}/bin:${PATH}