Fix compilation on Debian stable

[olupton]

A file added in #2027 did not compile with Debian stable: https://github.com/neuronsimulator/nrn-build-ci/actions/runs/5184018307/jobs/9344080598
With this change, it does: https://github.com/neuronsimulator/nrn-build-ci/actions/runs/5186212735/jobs/9347034540

It's not entirely clear why, the minimal reproducer:

template <typename Storage, typename... Tags>
struct soa {
    soa(): soa(Tags{}...) {}
    soa(Tags... tag_instances) {}
    soa(soa&&) = delete;
    soa(soa const&) = delete;
    soa& operator=(soa&&) = delete;
    soa& operator=(soa const&) = delete;
};
struct A {
    using type = float;
};
struct storage: soa<storage, A> {};
void foo() {
    storage data{};
}

fails inside a debian:stable Docker image but does not fail with GCC 10.2 on compiler explorer.
I believe that the error returned on Debian is not valid/correct.

[codecov]

Codecov Report

Merging #2372 (6a99d78) into master (6c529a4) will increase coverage by 0.00%.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##           master    #2372   +/-   ##
=======================================
  Coverage   60.15%   60.16%           
=======================================
  Files         642      642           
  Lines      121135   121135           
=======================================
+ Hits        72872    72878    +6     
+ Misses      48263    48257    -6     

Impacted Files	Coverage Δ
test/unit_tests/container/container.cpp	100.00% <100.00%> (ø)

... and 2 files with indirect coverage changes

📣 We’re building smart automated test selection to slash your CI/CD build times. Learn more

[azure-pipelines]

✔️ 6a99d78 -> Azure artifacts URL

[bbpbuildbot]

Logfiles from GitLab pipeline #129101 (:white_check_mark:) have been uploaded here!

Status and direct links:

• ✅ mac_m1_cmake_build: [cmake, ON, OFF, OFF, address]
• ✅ spack_setup
• ✅ build:nmodl
• ✅ build:neuron:nmodl:intel:legacy
• ✅ build:neuron:nmodl:intel:shared
• ✅ build:neuron:nmodl:nvhpc:acc:legacy
• ✅ build:neuron:nmodl:nvhpc:acc:shared
• ✅ build:neuron:nmodl:nvhpc:omp:legacy
• ✅ build:neuron:nmodl:nvhpc:omp
• ✅ test:neuron:nmodl:intel:legacy
• ✅ test:neuron:nmodl:intel:shared
• ✅ test:neuron:nmodl:nvhpc:acc:legacy
• ✅ test:neuron:nmodl:nvhpc:acc:shared
• ✅ test:neuron:nmodl:nvhpc:omp:legacy
• ✅ test:neuron:nmodl:nvhpc:omp